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Seed (true seed plus endocarp) dormancy in Anacardiaceae in relation to infrafamilial taxonomy and endocarp anatomy

Published online by Cambridge University Press:  09 November 2022

Jerry M. Baskin  and
Carol C. Baskin Open the ORCID record for Carol C. Baskin [Opens in a new window]
Jerry M. Baskin
Affiliation:
Department of Biology, University of Kentucky, Lexington, KY 40506, USA
Carol C. Baskin*
Affiliation:
Department of Biology, University of Kentucky, Lexington, KY 40506, USA Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY 40546, USA
*
*Author for Correspondence: Carol C. Baskin, E-mail: [email protected]
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Abstract

Information in the literature and unpublished results of the authors on Dobinea were used to determine the kind [class(es)] of seed (true seed + endocarp) dormancy and of non-dormancy of genera in all five tribes of Anacardiaceae, and the results were examined in relation to the taxonomic position and endocarp anatomy within the family. Reports of both seed germination and endocarp anatomy were found for 15 genera in tribe Spondiadeae, 6 in tribe Anacardieae, 30 in tribe Rhoeae, 3 in tribe Semecarpeae and 1 in tribe Dobineeae. In Spondiadeae (Spondias-type endocarp), Anacardieae, Semecarpeae and Dobineeae (Anacardium-type endocarp), seeds are either non-dormant (ND) or have physiological dormancy (PD). In Rhoeae (Anacardium-type Rhoeae Groups A, B, C and D endocarps), on the other hand, seeds are ND or have physical dormancy (PY), PD or PY + PD. PY/PY + PD in this tribe seems to be restricted (or nearly so) to Rhus s.s. and closely related genera (e.g. Cotinus, Malosma and Toxicodendron) with an Anacardium-type Rhoeae Group A endocarp. However, seeds of other genera (e.g. Astronium and Schinus) with this type of endocarp and those with Rhoeae Group B (e.g. Pistacia), Group C (e.g. Pentaspadon) and Group D (e.g. Heeria) endocarps are either ND or have PD. The fossil fruit record strongly suggests that present-day relationships between diaspore dormancy (or non-dormancy), endocarp structure and taxonomic position within Anacardiaceae extend back to at least the Palaeogene.

Keywords

Anacardiaceaeendocarp anatomyseed dormancywater-impermeable endocarp
Type
Review Paper
Information
Seed Science Research , Volume 32 , Issue 4 , December 2022 , pp. 187 - 199
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Copyright © The Author(s), 2022. Published by Cambridge University Press

Introduction

The family Anacardiaceae presents some of the most remarkable examples of seed protection by means of a hard woody endocarp, as well as some of the most ingenious devices to allow of the escape of the germinating embryos (Hill, Reference Hill1933).

The large cashew family Anacardiaceae (Magnoliidae, Sapindales) consists of 82 genera and 950 species. It includes two subfamilies and five tribes: Anacardioideae [tribes Anacardieae (Mangiferae sensu Engler, Reference Engler, Engler and Prantl1892), Dobineeae, Rhoeae and Semecarpeae] and Spondioideae (tribe Spondiadeae). The family is monophyletic and sister to the Burseraceae. The Anacardiaceae consists mostly of trees, shrubs and lianas, and its geographical distribution primarily is pantropical, with some members, for example Cotinus, Rhus and Toxicodendron, extending into the temperate zone. It occurs on all of the continents except Antarctica. The fruit type of most members (c. 80% of genera) of the Anacardiaceae is a drupe, and its highly variable endocarp anatomy is a central issue in determining the kind of seed dormancy (or non-dormancy). The family has a fossil fruit record that extends back to the Palaeogene. Regarding germination, some members of subfamily Spondioideae have an operculum (‘germination lid’) in the endocarp, while this structure is absent in subfamily Anacardioideae (Engler, Reference Engler, Engler and Prantl1892; Hill, Reference Hill1933, Reference Hill1937, Reference Hill1939; Mitchell and Mori, Reference Mitchell and Mori1987; Wannan and Quinn, Reference Wannan and Quinn1990, Reference Wannan and Quinn1991; Gadek et al., Reference Gadek, Fernando, Quinn, Hoot, Terrazas, Sheahan and Chase1996; Pell, Reference Pell2004; Mitchell et al., Reference Mitchell, Daly, Pell and Randrianasola2006; Wannan, Reference Wannan2006; Pell et al., Reference Pell, Mitchell, Lowry, Randrianasolo and Urbatsch2008, Reference Pell, Mitchell, Miller, Lobova and Kubitzki2011; Weeks et al., Reference Weeks, Zapata, Pell, Daly, Mitchell and Fine2014; APG IV, 2016; Mabberley, Reference Mabberley2017; Wheeler and Madeira, Reference Wheeler and Madeira2017; Herrera et al., Reference Herrera, Mitchell, Pell, Collinson, Daly and Manchester2018).

The germination unit of most species of Anacardiaceae is the drupe (or more specifically the true seed + endocarp; hereafter seed). Furthermore, the seed coat does not contain a mechanical layer. Thus, the functional roles of the seed coat, namely embryo protection and regulation of germination, are performed by the endocarp. In a few species (e.g. Pleiogynium), the mesocarp also is stony and helps to protect the seed. In a few genera, the endocarp of the mature fruit is water-impermeable, and thus, the seed has physical dormancy (PY), which may be combined with physiological dormancy (PD), that is combinational dormancy (PY + PD). However, in most genera, the endocarp is water-permeable, and the seed either is non-dormant (ND) or has PD. The embryo is fully developed, and the endosperm is scant or absent in mature seeds. Thus, the seed cannot have morphological dormancy or morphophysiological dormancy (Hill, Reference Hill1939; Corner, Reference Corner1976; von Teichman, Reference von Teichman1988b, Reference von Teichman1991; Baskin and Baskin, Reference Baskin and Baskin2014 and references cited therein).

There is considerable variation in endocarp anatomy within Anacardiaceae. Wannan and Quinn (Reference Wannan and Quinn1990) recognized two distinct basic types of endocarps within the family: the Spondias-type and the Anacardium-type (Table 1). The Spondias-type occurs throughout the tribe Spondiadeae, and the Anacardium-type occurs in the other four tribes of the family. However, the endocarps of Buchanania of tribe Anacardieae and of Campnosperma and Pentaspadon of tribe Rhoeae are similar to those of the Spondias-type (Wannan and Quinn, Reference Wannan and Quinn1990). Furthermore, within the tribe Rhoeae, Wannan and Quinn (Reference Wannan and Quinn1990) defined three groups (subtypes) of endocarps (A, B and C), and von Teichman (Reference von Teichman1991, Reference von Teichman1998) and von Teichman and van Wyk (Reference von Teichman and van Wyk1996) added a fourth one (i.e. Group D) (Table 1).

Table 1. Classification of endocarp structure (anatomy) in Anacardiaceae (primarily from Wannan and Quinn, Reference Wannan and Quinn1990, except Anacardium-type tribe Rhoeae Group D from von Teichman, Reference von Teichman1991, Reference von Teichman1998; von Teichman and van Wyk, Reference von Teichman and van Wyk1996)

Toxicodendron endocarp anatomy is from Copeland and Doyel (Reference Copeland and Doyel1940). Only those genera for which we have information on germination are included as examples of groups and subgroups. An asterisk (*) indicates a water-impermeable endocarp, that is physical dormancy and/or physical + physiological dormancy in the genus.

a Wannan and Quinn (Reference Wannan and Quinn1990) classified the Astronium endocarp as Anacardium-type Rhoeae Group A based on Astronium urundeuva fruit morphology. However, this species has been synonymized as Myracrodruon urundeuva (see de Lima et al., Reference de Lima, Tölke, da Silva-Luz, Demarco and Carmello-Guerreiro2022). Carmello-Guerreiro and Paoli (Reference Carmello-Guerreiro and Paoli2000) demonstrated that the pericarp structure of Astronium graveolens lacks the four-layered Rhoeae Group A endocarp as defined by Wannan and Quinn (Reference Wannan and Quinn1990) for Astronium. Carmello-Guerreiro and Paoli (Reference Carmello-Guerreiro and Paoli2000) concluded that the two-layered endocarp of A. graveolens is Anacardium-type B of Wannan and Quinn. de Lima et al. (Reference de Lima, Tölke, da Silva-Luz, Demarco and Carmello-Guerreiro2022) studied the fruit morphology of seven of the eight species of Astronium and the two species of Myracrodruon, and they observed the same pattern in all Astronium species except one, in agreement with Carmello-Guerreiro and Paoli (Reference Carmello-Guerreiro and Paoli2000). de Lima et al. (Reference de Lima, Tölke, da Silva-Luz, Demarco and Carmello-Guerreiro2022) concluded that Anacardium-type Rhoeae Group A endocarp was present in Myracrodruon but not in Astronium.

The primary aim of this review was to determine the relationship between kind (class, sensu Baskin and Baskin, Reference Baskin and Baskin2021) of seed dormancy (or non-dormancy), taxonomic position and endocarp anatomy within the family Anacardiaceae. In particular, we wanted to know if PY and PY + PD are associated only with the Anacardium-type Rhoeae Group A endocarp, such as it is in the Rhus s.s. species (Li et al., Reference Li, Baskin and Baskin1999a,Reference Li, Baskin and Baskinb,Reference Li, Baskin and Baskinc,Reference Li, Baskin and Baskind,Reference Li, Baskin and Baskine). Furthermore, do all taxa with this endocarp subtype have PY?

Methods

An extensive literature search was conducted for information on seed dormancy in Anacardiaceae. In a number of cases, the type of seed (i.e. true seed + endocarp) dormancy was inferred from seed germination phenology studies and/or from what already was known about dormancy and how to break it in that particular taxon (genus, tribe). Seeds that germinated without pretreatment within about 30 d of sowing in either phenology or laboratory studies were considered to be ND, whereas those that required longer periods to germinate were judged to have either PY, PD or PY + PD (Baskin and Baskin, Reference Baskin and Baskin2014). Seeds with PY or PY + PD were distinguished from those with PD based on treatment(s) required to break dormancy/imbibe water, such as treatment with GA3 or warm and/or cold stratification for PD, mechanical scarification for PY and mechanical scarification plus cold stratification for PY + PD, endocarp anatomy and/or information on other species in the genus (see Baskin and Baskin, Reference Baskin and Baskin2014, Reference Baskin and Baskin2021). The kind (class) of seed dormancy of each species was examined in relation to its endocarp type or subtype and taxonomic position (subfamily, tribe) in the Anacardiaceae.

Results and discussion

We found information on both seed dormancy/germination and endocarp anatomy [i.e. Anacardium-type Rhoeae Groups A, B, C or D sensu Wannan and Quinn, Reference Wannan and Quinn1990; von Teichman, Reference von Teichman1991, Reference von Teichman1998; von Teichman and van Wyk, Reference von Teichman and van Wyk1996 and/or Anacardium (A1), Anacardium (A2) or Spondias (B) sensu Wannan and Quinn, Reference Wannan and Quinn1991] for taxa in all five tribes of Anacardiaceae (Table 2). The 55 genera listed in Table 2 include 67.1% of the 82 genera and 742 (78.1%) of the 950 species in the family (sensu Mabberley, Reference Mabberley2017). Seeds of the 15 genera of tribe Spondiadeae (Spondias-type endocarp) are ND or have PD, those of the six genera of Anacardieae (Anacardium-type endocarp) are ND or have PD, those of the 30 genera of Rhoeae (Anacardium-type Rhoeae Groups A, B, C and D) are ND or have PY, PD or PY + PD and those of the three genera in tribe Semecarpeae and the one genus in the tribe Dobineeae (Anacardium-type endocarp) have ND and PD and PD, respectively. Recalcitrant seeds have been documented in 16 species and 9 genera of tribes Anacardieae (Bouea, Gluta and Mangifera), Rhoeae (Heeria, Protorhus and Sorindeia) and Spondiadeae (Lannea, Spondia and Tapirira) (Subbiah et al., Reference Subbiah, Ramdhani, Pammenter, Macdonald and Sershen2019).

Table 2. Types of endocarp and kinds of seed dormancy (or non-dormancy) in Anacardiaceae

Endocarp types Spondias (B), Anacardium (A1) and Anacardium (A2) are from Wannan and Quinn (Reference Wannan and Quinn1991), Rhoeae Group D from von Teichman (Reference von Teichman1991, Reference von Teichman1998), von Teichman and van Wyk (Reference von Teichman and van Wyk1996) and all others from Wannan and Quinn (Reference Wannan and Quinn1990). ND, non-dormancy; PD, physiological dormancy; PY, physical dormancy; PY + PD, combinational dormancy. Regarding ND versus PD, some species have a mixture of ND and PD, and others are wholly or primarily ND or PD.

a See footnote to Table 1.

In the five tribes of Anacardiaceae, PY and PY + PD occur only in the Rhoeae. Furthermore, within Rhoeae, PY is restricted to those taxa with Group A endocarp anatomy (Table 1). However, although seeds of Myracrodruon, for example, have this type of endocarp anatomy, they do not have PY; in fact, they are ND. de Melo et al. (Reference de Melo, Ribeiro and de Fritas Lima1979) reported that fresh seeds of M. urundeuva germinated to 35.5% in 14 d. In another study, Rizzini (Reference Rizzini1965) reported that seeds of M. urundeuva germinated to 90% after 19 d when planted under a cerrado (Brazilian savanna) climate in Brazil. Lorenzi (Reference Lorenzi1992) reported that seeds of M. urundeuva planted on sand enriched with organic matter germinated to 80% in 8–12 d, indicating that a high percentage of the seeds of the species are ND.

For seeds of three of the genera in tribe Rhoeae, namely Actinocheita, Haplorhus and Rhodosphaera (Table 2), information in the literature is not sufficient for us to have high confidence in assigning a dormancy class to them. Thus, we have placed a question mark beside the dormancy class. For example, Montoya Maquin (Reference Montoya Maquin1972) suggested that the pericarp (endocarp?) of Haplorhus peuviana might be impermeable to water. However, no studies were done to compare water uptake in intact versus scarified seeds to verify (or not) the impermeability of the endocarp.

Neither seeds of species in tribe Rhoeae with Group B (Pistacia), Group C (Pentospadon) nor Group D (Heeria and Smodingium) endocarp anatomy have PY. Seeds of Heeria, Pentaspadon and Smodingium are ND (Table 2). However, it appears that while seeds of some species of Pistacia have PD, those of others are ND. For example, seeds of Pistacia lentiscus germinated to ≥75% without any treatment (Piotto, Reference Piotto1995; Garcia-Fayos and Verdú, Reference Garcia-Fayos and Verdú1998). Neither mechanical scarification, prechilling nor scarification + prechilling significantly increased germination percentages over that of the control. The only effect of these treatments was to cause a small, but significant, increase in germination rate (speed). Furthermore, Morrero (Reference Morrero1949) reported that average time after sowing to germination for three sowings of P. chinensis seeds was 12 d.

Based primarily on the number of carpel lobes of female flowers and on endocarp anatomy (see Table 3), Wannan and Quinn (Reference Wannan and Quinn1991) provided a tentative taxonomic arrangement of genera within Anacardiaceae. They used these various characters for placement of genera in this family into either Group A or Group B (not to be confused with Rhoeae endocarp Group A and Rhoeae endocarp Group B sensu Wannan and Quinn, Reference Wannan and Quinn1990), which were subdivided into two subgroups (Table 3). Wannan and Quinn's (Reference Wannan and Quinn1991) scheme uses endocarp anatomy as one of the characters to subdivide Group A into Subgroups A1 and A2, but it uses only characters of the gynoecium to subdivide Group B into Subgroups B1 and B2. Since they did not use endocarp anatomy to subdivide genera in Group B into Subgroups B1 and B2, genera in this group included in our study are indicated as ‘Spondias (B)’ in Table 2. With regard to endocarp anatomy, it is shown in Table 2 how the genera for which we have information on both seed dormancy/germination and endocarp anatomy fit into both of Wannan and Quinn's (Reference Wannan and Quinn1990, Reference Wannan and Quinn1991) arrangements.

Table 3. Endocarp structure included (along with characters of gynoecium, see text) in taxonomic arrangement of Anacardiaceae into two groups (from Wannan and Quinn, Reference Wannan and Quinn1991; Wannan, Reference Wannan2006)

Only those genera for which we have information on germination are included as examples of groups and subgroups. An asterisk (*) indicates physical dormancy and/or physical + physiological dormancy in the genus.

a See footnote to Table 1.

Applying Wannan and Quinn's (Reference Wannan and Quinn1991) taxonomic arrangement to the 55 genera in Table 2, the following can be seen. (1) Four of the six genera in Anacardieae are in Subgroup A1, one (Anacardium) in Anacardium Subgroup A2 and one (Buchanania) in Spondias Group B. (2) With only one exception (Anacardium), all genera in Subgroup A2 are in tribe Rhoeae. (3) All genera in Group B belong to Spondiadeae, except Buchanania (Anacardieae), Campnosperma (Rhoeae) and Pentaspadon (Rhoeae). (4) All genera with PY or PY + PD are in Subgroup A2. However, this Subgroup also includes genera with ND seeds, PD seeds and both ND and PD seeds.

The fossil fruit record shows that species of Anacardiaceae with PY (Rhus s.s.) and ND/PD (Anacardium and the extinct genus Pentoperculum, Spondiadeae) extend at least as far back as the Eocene (Manchester, Reference Manchester1994; Manchester et al., Reference Manchester, Wilde and Collinson2007; Herrera et al., Reference Herrera, Mitchell, Pell, Collinson, Daly and Manchester2018 and references cited for fossil endocarps of subfamily Spondioideae; Flynn et al., Reference Flynn, DeVore and Pigg2019; Manchester and Judd, Reference Manchester and Judd2022). Baskin et al. (Reference Baskin, Baskin and Li2000) suggested that PY + PD may have originated in the Oligocene, in conjunction with climatic cooling. According to Wannan and Quinn (Reference Wannan and Quinn1990), ‘The occurrence of the Spondias-type of endocarp in a genus [Conarium, Burseraceae] of the sister group [of Anacardiaceae] suggests that this type of endocarp is plesiomorphic and that the Anacardium-type is derived.’ In this case, a water-impermeable endocarp and thus PY and PY + PD are derived in subfamily Anacardioideae. Furthermore, the diaspores of Burseraceae do not have PY or PY + PD, and the embryo is fully developed; they are either ND or have PD (e.g. Ng, Reference Ng1991; Sautu et al., Reference Sautu, Baskin, Baskin, Deago and Condit2007; Baskin and Baskin, Reference Baskin and Baskin2014; Rodríguez-Arévalo et al., Reference Rodríguez-Arévalo, Mattana, García, Liu, Lira, Dávila, Hudson, Pritchard and Ulian2017). However, PY/PY + PD does occur in two other families of Sapindales (sensu APG IV, 2016), namely Biebersteinaceae (Boesewinkel, Reference Boesewinkel1997; Koutsovoulou et al., Reference Koutsovoulou, Vassiliades, Yannitsaros and Thanos2005) and Sapindaceae (Baskin et al., Reference Baskin, Davis, Baskin, Gleason and Cordell2004; Turner et al., Reference Turner, Merritt, Baskin, Baskin and Dixon2006, Reference Turner, Cook, Baskin, Baskin, Tuckett, Steadman and Dixon2009; Cook et al., Reference Cook, Turner, Baskin, Baskin, Steadman and Dixon2008). In Anacardiaceae and Biebersteinaceae, the water-impermeable layer in diaspores with PY/PY + PD is the endocarp of the fruit, but in the Sapindaceae, the water-impermeable layer is in the seed coat.

Concluding remarks

Seeds with PY or PY + PD in Anacardiaceae have evolved only in tribe Rhoeae and only in genera with the Anacardium-type Rhoeae Group A endocarp anatomy. However, neither PY nor PY + PD is present in seeds of all genera that have this specialized anatomical endocarp type. Two distinct morphoanatomical features of the seed/fruit (endocarp) of diaspores with PY are the water-impermeable palisade (macrosclereid) layer(s) with a linea lucida (light line) and a water gap (or water gap complex) that opens (permanently) in response to an environmental signal, thereby serving as the initial predetermined pathway for the entrance of water into the seed (e.g. Hamly, Reference Hamly1932; Christiansen and Moore, Reference Christiansen and Moore1959; Egley and Paul, Reference Egley and Paul1981; Manning and Van Staden, Reference Manning and Van Staden1987; Gama-Arachchige et al., Reference Gama-Arachchige, Baskin, Geneve and Baskin2013; Baskin and Baskin, Reference Baskin and Baskin2014; Burrows et al., Reference Burrows, Alden and Robinson2018; Geneve et al., Reference Geneve, Baskin, Baskin, Jayasuriya and Gama-Arachchige2018). In the case of diaspores, such as those of the anacardiaceous genera Lithraea and Rhus s.s. with PY, the endocarp is composed of four layers of cells; three of these are palisade macrosclereids, only one of which (osteosclereid layer) has a light line. Thus, it seems that a water-impermeable macrosclereid palisade layer with a linea lucida and a water gap together constitute the ‘PY syndrome’ in diaspores of angiosperms with a water-impermeable seed/fruit coat. In this case, the presence/absence of these morphoanatomical features can be used to determine which genera with Anacardium-type Rhoeae Group A endocarp have PY (or PY + PD) and which do not. A water gap (‘carpellary micropyle’) in Anacardiaceae has been identified/characterized only in Rhus s.s. species (Li et al., Reference Li, Baskin and Baskin1999b), which have an Anacardium-type Rhoeae Group A endocarp and PY or PY + PD (Table 2). Overall, then, a detailed anatomical comparison of water-permeable and water-impermeable Anacardium-type Rhoeae Group A endocarps should provide insight on why the diaspores of some genera in tribe Rhoeae have PY or PY + PD and others are ND or have PD.

With regard to determining if a seed or other diaspore is water-permeable or impermeable, it is important to keep in mind that impermeability (i.e. PY) develops either during maturation drying on the mother plant or even during post-dispersal drying (Baskin and Baskin, Reference Baskin and Baskin2014; Jaganathan, Reference Jaganathan2016, Reference Jaganathan2022; Thusithana et al., Reference Thusithana, Amarasekara, Jayasuriya, Gama-Arachchige, Baskin and Baskin2021). Seeds or fruits with PY become impermeable to water only when the moisture content (MC) of the diaspore falls below a species-specific MC threshold (see Table 6.2 in Baskin and Baskin, Reference Baskin and Baskin2014); otherwise, the diaspore will remain water-permeable. Gallará et al. (Reference Gallará, López Tapia, Zeballos, Brailovsky and Maggi2021) showed that the drupes of Lithraea molleoides (Anacardiaceae) needed post-dispersal drying for the induction of PY. However, in fact, the diaspore MC at which PY is induced also can vary even between populations of the same taxon growing under different environmental conditions (Thusithana et al., Reference Thusithana, Amarasekara, Jayasuriya, Gama-Arachchige, Baskin and Baskin2021). And furthermore, the development of PY does not occur at the same time for all seeds in the same days-after-pollination cohort and thus not at the same MC [see discussion in Qu et al. (Reference Qu, Baskin and Baskin2010) and references cited therein]. Therefore, it is essential for the MC of diaspores be considered in addition to morphoanatomical traits (see above) in assigning PY or PY + PD to diaspores. In sum, then, the presence of the PY syndrome is an indicator of the potential of a species to develop PY, if, and only if, they reach the threshold MC during maturation or post-dispersal drying.

Acknowledgements

We thank Dr. Xiaojie Li for translating the papers on Rhus chinensis (by Huang and Qia) and Toxicodendrom verniciflua (by Xu and Xu) from Chinese to English, Dr. Zhenying Huang for sending us seeds of Dobinea from China and Dr. Fernando Gallará for providing information that allowed us to write footnote ‘a’ of Table 1.

Conflicts of interest

None declared.

References

Agbogan, A, Bammite, D, Tozo, K and Akpagana, K (2014) Contribution a la multiplication, par grains et par bouturage de segments de tiges et da raciness, de trois fruitiers spontanes de la region des savanes au Togo: Haematostaphis barteri Hook. f., Lannea microcarpa Engl. & K. Krauss et Sclerocarya birrea (A. Rioch.) Hochst. European Scientific Journal 10, 195–211 (with English abstract).Google Scholar
Agrawal, AA (1996) Seed germination of Loxopterygium guasango, a threatened tree of coastal northwestern South America. Tropical Ecology 37, 273–276.Google Scholar
Agrawal, PK and Prakash, G (1978) Control on seed germination in some Indian trees. Tropical Ecology 19, 174–177.Google Scholar
Airi, S, Rawal, RS, Samant, SS and Dhar, U (1998) Treatments to improve germination of four multipurpose trees of central subHimalaya. Seed Science & Technology 26, 347–354.Google Scholar
Alencar, JDC and Megalhaes, LM (1979) Poder germinativo de sementes de doze especies florestais da regiao de Manaus. I. Acta Amazonica 9, 411–418 (with English summary).CrossRefGoogle Scholar
Ancrenaz, M, Lackman-Ancrenaz, I and Elahan, H (2006) Seed spitting and seed swallowing by wild orang-utans (Pongo pygmaeus morio) in Sabah, Malaysia. Journal of Tropical Biology and Conservation 2, 65–70.Google Scholar
Anderson, P (2002) Schinus molle L, pp. 710–711 in Vozzo, JA (Ed.) Tropical tree seed manual. USDA Forest Service. Agricultural Handbook Number 721.Google Scholar
APG (The Angiosperm Phylogeny Group) IV (2016) An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV. Botanical Journal of the Linnean Society 181, 1020.Google Scholar
Ashwath, N, McLaughlin, M, McIntyre, W, Plummer, J and Slee, M (1994) Seed germination in a selection of tree, shrub, forb and grass species native to Kakadu National Park and its environs, pp. 81–86 in Bellairs, SM and Bell, LC (Eds) National workshop on native seed biology for revegetation, 24–26 August 1994. Perth, WA, Australia, Chamber of Mines and Energy.Google Scholar
Atwater, BR (1980) Germination, dormancy and morphology of the seeds of herbaceous ornamental plants. Seed Science & Technology 8, 523–573.Google Scholar
Australian Tropical Rainforest Plants 102. Euroshinus falcatus Hook. f. var. falcatus. Available at: https://apps.lucidcentral.org/rainforest/text/entities/euroschinus_falcatus_var._falcatus.htm (accessed 31 December 2021).Google Scholar
Australian Tropical Rainforest Plants 219. Blepharocarya involucrigera F. Muell. Available at: https://apps.lucidcentral.org/rainforest/text/entities/blepharocarya_involucrigera.htm (accessed 31 December 2021).Google Scholar
Australian Tropical Rainforest Plants 392. Pleiogynium timoriense (DC.) Leenh. Available at: https://apps.lucidcentral.org/rainforest/text/entities/pleiogynium_timoriense.htm (accessed 30 December 2021).Google Scholar
Azevedo, DDM, Mendes, AMS and Figueiredo, AF (2004) Caracteristica da germinacao e morfologia do endocarpo e plantula de tapereba (Spondias mombin L.) – Anacardiaceae. Comunicacao Cientifica 26, 534–537 (with English abstract).Google Scholar
Baskin, CC and Baskin, JM (2014) Seeds: ecology, biogeography, and evolution of dormancy and germination (2nd edn). San Diego, Academic Press/Elsevier.Google Scholar
Baskin, JM and Baskin, CC (2021) The great diversity in kinds of seed dormancy: revision of the Nikolaeva-Baskin classification system for primary seed dormancy. Seed Science Research 31, 249–277.CrossRefGoogle Scholar
Baskin, JM, Baskin, CC and Li, X (2000) Taxonomy, anatomy and evolution of physical dormancy in seeds. Plant Species Biology 15, 139–152.CrossRefGoogle Scholar
Baskin, JM, Davis, BH, Baskin, CC, Gleason, SM and Cordell, S (2004) Physical dormancy in seeds of Dodonaea viscosa (Sapindalses, Sapindaceae) from Hawaii. Seed Science Research 14, 81–90.CrossRefGoogle Scholar
Beniwal, BS and Singh, NB (1989) Observations on flowering, fruiting and germination of some useful plants of Arunachal Pradesh. Indian Forester 115, 216–227.Google Scholar
Blakesley, D, Elliott, S, Kuarak, C, Navakitbumrang, P, Zangkum, S and Anusarnsunthorn, V (2002) Propagating framework tree species to restore seasonally dry tropical forest: implications of seasonal seed dispersal and dormancy. Forest Ecology and Management 164, 31–38.CrossRefGoogle Scholar
Boesewinkel, FD (1997) Seed structure and phylogenetic relationships of the Geraniales. Botanische Jahrbucher fur Systematik, Pflanzenfeschichte und Pflanzengeographie 119, 277–291.Google Scholar
Bolin, JF, Jones, ME and Musselman, LJ (2011) Germination of the federally endangered Michaux's sumac (Rhus michauxii). Native Plants Journal 12, 119–122.CrossRefGoogle Scholar
Braga, LL, Rodrigues, PMS, Nunes, YRF and Veloso, MDM (2014) Effects of pre-germination treatments and storage on germination of Astronium fraxinifolium Schott (Anacardiaceae) diaspores. Ciencia Florestal 24, 391–399.CrossRefGoogle Scholar
Burrows, GE, Alden, R and Robinson, WA (2018) The lens in focus – lens structure in seeds of 51 Australian Acacia species and its implications for imbibition and germination. Australian Journal of Botany 66, 398–413.CrossRefGoogle Scholar
Carmello-Guerreiro, SM and Paoli, AAS (2000) Estrutura do pericarpo e da semente de Astronium graveolens Jacq. (Anacardiaceae) com notas taxonomicas. Revista Brasileira de Botanica 23, 87–96 (with English abstract).Google Scholar
Carmello-Guerreiro, SM and Paoli, AAS (2002) Ontogeny and structure of the pericarp of Schinus terebinthifolius Raddi (Anacardiaceae). Brazilian Archives of Biology and Technology 45, 73–79.CrossRefGoogle Scholar
Carmello-Guerreiro, SM and Paoli, AAS (2005) Anatomy of the pericarp and seed-coat of Lithraea molleoides (Vell.) Engl. (Anacardiaceae) with taxonomic notes. Brazilian Archives of Biology and Technology 48, 599–610.CrossRefGoogle Scholar
Carvalho, JEU, Nascimento, WMO and Müller, CH (1998) Caracteristicas fisicas e de germinacao de sementes de especies frutiferas nativas da Amazonia. Boletim de Pesquisa 203, 1–18 (with English abstract).Google Scholar
Carvalho, MP, Santa, DG and Ranal, MA (2005) Emergencai de plantulas de Anacardium humile A. St.-Hil. (Anacardiaceae) avaliada pro meio de amostras pequenas. Revista Brasileira de Botanica 28, 627–633 (with English abstract).Google Scholar
Cesarino, F, Leão, JA, Pantoja, TF and Silva, BMS (2007) Germinacao de sementes de tatapiririca (Tapirira guianensis Aubl.) em diferentes temperaturas. Revista Brasileira de Biociencias 5, 348–350.Google Scholar
Chaabouni, AC and Gouta, H (2002) Effects of chemical scarification and gibberellic acid on in vitro germination of Pistacia atlantica seeds, pp. 73–76 in Battle, I; Hormaza, I and Espiau, MT (Eds) Proceedings of the 3rd international symposium on pistachios and almonds. Acta Horticulturae 591.Google Scholar
Christiansen, MN and Moore, RP (1959) Seed coat structural differences that influence water uptake and seed quality in hard seed cotton. Agronomy Journal 51, 582–584.CrossRefGoogle Scholar
Colado, MLZ, Reis, LK, Guerra, A, Ferreira, BHS, Fonseca, DR, Timóteo, A, Gondim, EX, Guerin, N and Garcia, LC (2020) Key decision-making criteria for dormancy-breaking and ability to form seed banks of Cerrado native tree species. Acta Botanica Brasilica 34, 694–703.CrossRefGoogle Scholar
Cook, A, Turner, SR, Baskin, JM, Baskin, CC, Steadman, KJ and Dixon, KW (2008) Occurrence of physical dormancy in seeds of Australian Sapindaceae: a survey of 14 species in nine genera. Annals of Botany 101, 1349–1362.CrossRefGoogle ScholarPubMed
Copeland, HA and Doyel, BE (1940) Some features of the structure of Toxicodendron diversiloba. American Journal of Botany 27, 932–939.CrossRefGoogle Scholar
Corbineau, F, Kanté, M and Côme, D (1986) Seed germination and seedling development in the mango (Mangifera indica L.). Tree Physiology 1, 151–160.CrossRefGoogle ScholarPubMed
Corner, EJH (1976) The seeds of dicotyledons, vols. 1 and 2. Cambridge, Cambridge University Press.Google Scholar
Culshaw, CM, Espinosa, P, Pritchard, HW and Engels, J (2002) Thermal scarification of hard seeds by wet heat treatment risks accelerated seed ageing: evidence from five woody taxa, pp. 34–39 in Thanos, CA; Beardmore, TL; Connor, KF and Tolentino, EL (Eds) Research group for seed physiology and technology. Tree seeds 2002. IUFRO Tree Seed Symposium, 11–15 September 2002, University of Athens, MAICh and Hellenic Ministry of Agriculture, Greece, Chania, Crete.Google Scholar
Dahab, A, Shafig, AY and Al-Kinany, A (1975) Effects of gibberellic acid, B-nine and scarification on the germination of seeds of Pistacia khinjuk stock. Mesopotamia Journal of Agriculture 10, 13–19.Google Scholar
Daibes, LF, Amoêdo, SC, Moraes, JN, Fenelon, N, Silva, DR, Lopes, MJM, Vargas, LA, Monteiro, EF and Frigeri, RBC (2019) Thermal requirements of seed germination of ten tree species occurring in the western Brazilian Amazon. Seed Science Research 29, 115–123.CrossRefGoogle Scholar
Dantas, BF, Moura, MSB, Pelacani, CR, Angelotti, F, Taura, TA, Oliveira, GM, Bispo, JS, Matias, JR, Silva, FFS, Pritchard, HW and Seal, CE (2020) Rainfall, not soil temperature, will limit seed germination of dry forest species with climate change. Oecologia 192, 529–541.CrossRefGoogle ScholarPubMed
de Lima, EA, Tölke, ED, da Silva-Luz, CL, Demarco, D and Carmello-Guerreiro, SM (2022) Fruit morphoanatomy of Astronium Jacq. and Myracrodruon Allemão (Anacardiaceae): taxonomic implications and development of the calycinal wings. Brazilian Journal of Botany 45, 431–447.CrossRefGoogle Scholar
Demelash, L, Tigabu, M and Odén, PC (2003) Enhancing germinability of Schinus molle L. seed lot from Ethiopia with specific gravity and IDS techniques. New Forests 26, 33–41.CrossRefGoogle Scholar
de Melo, JJ, Ribeiro, JF and de Fritas Lima, VG (1979) Germinacao de sementes de algunas especies arboreras nativas do Cerrado. Revista de Braileira de Sementes 1, 8–12 (with English abstract).CrossRefGoogle Scholar
Deng, ZJ, Cheng, HY and Song, SQ (2010) Effects of temperature, scarification, dry storage, stratification, phytohormone and light on dormancy-breaking and germination of Cotinus coggygria var. cinerea (Anacardiaceae) seeds. Seed Science & Technology 38, 572–584.CrossRefGoogle Scholar
Deshpande, SM and Yadav, SR (2020) Conservation of selected rare and endemic trees. Indian Forester 146, 332–337.CrossRefGoogle Scholar
Dey, K, Ghosh, A, Dey, AN, Bhowmick, N and Bauri, FK (2016) Studies on seed germination and seedling behaviour of Indian hog-plum (Spondias pinnata) in response to different pre-sowing treatments. Seed Science & Technology 44, 642–646.CrossRefGoogle Scholar
Dlamini, MD (2004) Harpephyllum caffrum Bernh. PlantZAfrica. Available at: http://pza.sanbi.org/harpephyllum-caffrum (accessed 30 December 2021).Google Scholar
Dlamini, CS (2010) Provenance and family variation in germination and early seedling growth in Sclerocarya birrea sub-species caffra. Journal of Horticulture and Forestry 2, 229–235.Google Scholar
dos Reis, GGD, Brune, A and Rena, AB (1980) Germinacao de sementes de essencias florestais. Pesquisa Agropecuaria Brasileira 15, 97–100 (with English abstract).Google Scholar
Doussi, MA and Thanos, CA (1994) Post-fire regeneration of hardseeded plants: ecophysiology of seed germination, pp. 1035–1044 in Viegas, DX (Ed.) Proceedings of the 2nd international conference on forest fire research, vol. II, 21–24 November 1994, Coimbra, Portugal.Google Scholar
Egley, GH and Paul, RN Jr (1981) Morphological observations on the early imbibition of water by Sida spinosa (Malvaceae) seed. American Journal of Botany 68, 1056–1065.CrossRefGoogle Scholar
Elliott, S, Kopachon, S, Suriya, K, Plukum, S, Pakaad, G, Navakitbumrung, P, Maxwell, JF, Anusarnsunthorn, V, Garwood, NC and Blakesley, D (1997) Forest restoration research in northern Thailand: 2. The fruits, seeds and seedlings of Gluta usitata (Wall.) Hou (Anacardiaceae). Natural History Bulletin of the Siam Society 45, 205–215.Google Scholar
Ellis, RH, Mai-Hong, J, Hong, TD, Tan, TT, Xuan-Chuong, ND, Hung, LQ, Ngoc-Tam, B and Le-Tam, VT (2007) Comparative analysis by protocol and key of seed storage behaviour of sixty Vietnamese tree species. Seed Science & Technology 35, 460–476.CrossRefGoogle Scholar
Engler, A (1892) Anacardiaceae, pp. 138–178 in Engler, A and Prantl, K (Eds) Die naturlichen pflanzenfamilien, III. 4. Leipzig, Engelmann.Google Scholar
Evans, M (2001) Propagation protocol of poison oak (Toxicodendron diversilobum). Native Plants Journal 2, 108–109.CrossRefGoogle Scholar
Farji-Brenner, AG and Silva, JF (1996) Leaf-cutter ants’ (Atta laevigata) aid to establishment success of Tapirira velutinifolia (Anacardiaceae) seedlings in a parkland savanna. Journal of Tropical Ecology 12, 163–168.CrossRefGoogle Scholar
Farmer, RE, Lockley, GC and Cunningham, M (1982) Germination patterns of the sumacs, Rhus glabra and Rhus coppalina: effects of scarification time, temperature and genotype. Seed Science & Technology 10, 223–231.Google Scholar
Flynn, S, DeVore, M and Pigg, KB (2019) Morphological features of sumac leaves (Rhus, Anacardiaceae), from the Latest Eocene flora of Republic, Washington. International Journal of Plant Sciences 180, 464–478.CrossRefGoogle Scholar
Francis, JK (1992) Spondias mombin. Hogplum. Anacardiaceae. Cashew Family. USDA Forest Service. Southern Research Station. General Technical Report SO-ITF-SM-51.Google Scholar
Funes, G, Días, S and Venier, P (2009) La temperature como principal determinante de la germinacion en especies del Chaco seco de Argentina. Ecologia Austral 19, 129–138 (with English abstract).Google Scholar
Gadek, PA, Fernando, ES, Quinn, CJ, Hoot, SB, Terrazas, T, Sheahan, MC and Chase, MW (1996) Sapindales: molecular delimitation and infraordinal groups. American Journal of Botany 83, 802–811.CrossRefGoogle Scholar
Gallará, FA, López Tapia, MF, Zeballos, SR, Brailovsky, V, Días, MS, Palacio, L, De Luca, NC and Maggi, ME (2017) Tolerancia a la desecacion y dormicion fisica en semillas de Lithraea molleoides (Vell.) Engl. (Anacardiaceae). Boletin de la Sociedad Argentina de Botanica 52(supplement), 126 (abstract).Google Scholar
Gallará, FA, López Tapia, MF, Zeballos, SR, Brailovsky, V and Maggi, ME (2021) Effect of drying on the diaspores of Lithraea molleoides (Vell.) Engl. (Anacardiaceae): the importance of developing protocols for native seeds. Poster. III conferencia Brasileira de Restauracao Ecologia. I. Seminario Brasileiro de Sementes Nativas, 8–11 November 2020. Online meeting.Google Scholar
Gama-Arachchige, NS, Baskin, JM, Geneve, RL and Baskin, CC (2013) Identification and characterization of ten new water gaps in seeds and fruits with physical dormancy and classification of water-gap complexes. Annals of Botany 112, 69–84.CrossRefGoogle ScholarPubMed
Gamémé, CS, Erdey, D, Baxter, D, Motete, N and Berjak, P (2004) Desiccation, germination and storage of Sclerocarya birrea seeds from Burkina Faso, pp. 40–56 in Sacandé, M; Jøker, C; Dulloo, ME and Thomsen, KA (Eds) Comparative storage biology of tropical tree seeds. Rome, International Plant Genetic Resources Institute.Google Scholar
Garcia-Fayos, P and Verdú, M (1998) Soil seed bank, factors controlling germination and establishment of a Mediterranean shrub: Pistacia lentiscus L. Acta Oecologica 19, 357–366.CrossRefGoogle Scholar
Garwood, NC (1983) Seed germination in a seasonal tropical forest in Panama. Ecological Monographs 53, 159–181.CrossRefGoogle Scholar
Geneve, RL, Baskin, CC, Baskin, JM, Jayasuriya, KMGG and Gama-Arachchige, NS (2018) Functional morpho-anatomy of water-gap complexes in physically dormant seed. Seed Science Research 28, 186–191.CrossRefGoogle Scholar
Gentallan, RP Jr, Altoveros, NC, Borromeo, TH, Hadsall, AS and Timog, EBS (2018) Hemi-cryptocotylar epigeal germination of Koordersiodendron pinnatum (Anacardiaceae) framed according to the BBCH scale. Seed Science & Technology 46, 191–196.CrossRefGoogle Scholar
González, AM and Vesprini, JL (2010) Anatomy and fruit development in Schinopsis balansae (Anacardiaceae). Anales del Jardin Botanico de Madrid 67, 103–112.CrossRefGoogle Scholar
Goulding, JA (2001) Germination of seeds of the tropical rainforest species: response to time and light quality. M.S. thesis, James Cook University, Townsville, Australia.Google Scholar
Guner, A and Tilki, F (2009) Dormancy breaking in Cotinus coggygria Scop. seeds of three provenances. Scientific Research and Essay 4, 73–77.Google Scholar
Guo, H, Liu, Y, Wang, H and Li, S (2022) Study on the dormancy characteristics of Chinese pistache (Pistacia chinensis Bunge) seeds. Forests 13, 1521.CrossRefGoogle Scholar
Hamidou, A, Iro, DG, Boubé, M, Malick, TS and Ali, M (2014) Potential germination and initial growth of Sclerocarya birrea (A. Riock.) Hochst. in Niger. Journal of Applied Biosciences 76, 6433–6443.CrossRefGoogle Scholar
Hamly, DH (1932) Softening of the seeds of Melilotus alba. Botanical Gazette 93, 345–375.CrossRefGoogle Scholar
Heit, CE (1967) Propagation from seed 6. Hardseededness: a critical factor. American Nurseryman 125, 10–12, 88–96.Google Scholar
Heit, CE (1968) Propagation from seed – part 15. Fall planting of shrub seed for successful seedling production. American Nurseryman 128, 70–80.Google Scholar
Heit, CE (1970) Germinative characteristics and optimum testing methods for twelve western shrub species. Proceedings of the Association of Official Seed Analysts 60, 197–205.Google Scholar
Herrera, F, Mitchell, JD, Pell, SK, Collinson, ME, Daly, DC and Manchester, SR (2018) Fruit morphology and anatomy of the Spondioid Anacardiaceae. The Botanical Review 84, 315–393.CrossRefGoogle ScholarPubMed
Hill, AW (1933) The method of germination of seeds enclosed in a stony endocarp. Annals of Botany 47, 873–887.CrossRefGoogle Scholar
Hill, AW (1937) The method of germination of seeds enclosed in a stony endocarp. II. Annals of Botany (New Series) 1, 239–256.CrossRefGoogle Scholar
Hill, AW (1939) Studies in the germination of seeds. Lecture II. – Some abnormal dicotyledons. Special Publication from Association for the Cultivation of Science [Calcutta, India] 7, 13–49.Google Scholar
Holmes, CH (1954) Seed germination and seedling studies of timber trees of Ceylon. The Ceylon Forester 1, 3–51.Google Scholar
Holtzhausen, LC, Swart, E and van Rensburg, R (1990) Propagation of the marula (Sclerocarya birrea subsp. caffra). Acta Horticulturae 275, 323–334.CrossRefGoogle Scholar
Huang, J and Qiu, F (1994) A study on propagation of Rhus chinensis by seeds. Guihaia 14, 85–89 (in Chinese with short English abstract).Google Scholar
Ibikunle, BO and Komolafe, DA (1973) Some experiments on the germination of cashew nuts (Anacardium occidentale Linn.). Nigerian Journal of Science 7, 19–29.Google Scholar
Izhaki, I and Safriel, UN (1990) The effect of some Mediterranean scrubland frugivores upon germination patterns. Journal of Ecology 78, 56–65.CrossRefGoogle Scholar
Jaganathan, GK (2016) Influence of maternal environment in developing different levels of physical dormancy and its ecological significance. Plant Ecology 217, 71–79.CrossRefGoogle Scholar
Jaganathan, GK (2022) Unravelling the paradox in physically dormant species: elucidating the onset of dormancy after dispersal and dormancy-cycling. Annals of Botany 130, 121–129.CrossRefGoogle ScholarPubMed
Jøker, D and Erdey, D (2003 ) Sclerocarya birrea (A. Rich.) Hochst. Humlebaek, Denmark, Danida Forest Seed Centre. Seed Leaflet No. 72.Google Scholar
Joley, LE and Opitz, KW (1971) Further experiments with propagation of Pistacia. Combined Proceedings of the International Plant Propagator's Society 21, 67–76.Google Scholar
Jose, PA and Pandurangan, AG (2003) Conservation biology of Gluta travancorica: a system approach for management and utilization of rare and endemic trees of Western Ghats, pp. 321–328 in Janarthanam, MK and Narasimhan, D (Eds) Plant diversity, human welfare and conservation, Talegão, India, Gao University.Google Scholar
Jose, PA and Pandurangan, AG (2005) Occurrence of twin seedlings in Gluta travancorica Bedd. – a rare and endemic tree of the southern Western Ghats. Indian Forester 131, 118–120.Google Scholar
Kanzaki, M, Yap, SK, Okauchi, Y and Yamakura, T (1997) Survival and germination of buried seeds of non-dipterocarp species in a tropical rain forest at Pasoh, West Malaysia. Tropics 7, 9–20.CrossRefGoogle Scholar
Keeley, JE (1991) Seed germination and life history syndromes in the California chaparral. The Botanical Review 57, 81–116.CrossRefGoogle Scholar
Khan, MR (2015) Effects of seed treatment and storage containers on germination and storability of Semecarpus anacardium Linn. f. seeds. Bio-Science Research Bulletin 31, 25–32.CrossRefGoogle Scholar
Kitamura, S, Yumoto, T, Poonswad, P and Wohandee, P (2007) Frugivory and seed dispersal by Asian elephants, Elephas maximus, in a moist evergreen forest of Thailand. Journal of Tropical Ecology 23, 373–376.CrossRefGoogle Scholar
Knowles, OH and Parrotta, JA (1995) Amazonian forest restoration: an innovative system for native species selection based on phenological data and field performance indices. Commonwealth Forestry Review 74, 230–243.Google Scholar
Koutsovoulou, K, Vassiliades, D, Yannitsaros, A and Thanos, CA (2005) Seed germination of Biebersteinia orphanidis Boiss. Proceedings of the National Conference of the Hellenic Botanical Society 10, 331–337 (in Greek with English abstract).Google Scholar
Kujawski, J (2001) Propagation protocol for poison sumac (Toxicodendron vernix). Native Plants Journal 2, 112–113.CrossRefGoogle Scholar
Lan, Q-Y, Yin, SH, He, H-Y, Tan, Y-H, Liu, Q, Xia, Y-M, Wen, B, Baskin, CC and Baskin, JM (2018) Seed dormancy-life form profile for 358 species from the Xishuangbanna seasonal tropical rainforest, Yunnan Province, China compared to world database. Scientific Reports 4, 259.Google Scholar
Lapitan, PG (1988) Collection and germination of Koordersiodendron pinnatum seeds. Philippine Technology Journal 13, 50–53.Google Scholar
Lewis, DM (1987) Fruiting patterns, seed germination, and distribution of Sclerocarya caffra in an elephant-inhabited woodland. Biotropica 19, 50–56.CrossRefGoogle Scholar
Li, X, Baskin, JM and Baskin, CC (1999a) Comparative morphology and physiology of fruit and seed development in the two shrubs Rhus aromatica and R. glabra (Anacardiaceae). American Journal of Botany 86, 1217–1225.CrossRefGoogle Scholar
Li, X, Baskin, JM and Baskin, CC (1999b) Anatomy of two mechanisms of breaking physical dormancy by experimental treatments in seeds of two North American Rhus species (Anacardiaceae). American Journal of Botany 86, 1505–1511.CrossRefGoogle ScholarPubMed
Li, X, Baskin, JM and Baskin, CC (1999c) Pericarp ontogeny and anatomy in Rhus aromatica Ait. and R. glabra L. (Anacardiaceae). Journal of the Torrey Botanical Society 126, 279–288.CrossRefGoogle Scholar
Li, X, Baskin, JM and Baskin, CC (1999d) Physiological dormancy and germination requirements of non-dormant seeds of several North American Rhus species (Anacardiaceae). Seed Science Research 9, 237–245.CrossRefGoogle Scholar
Li, X, Baskin, JM and Baskin, CC (1999e) Seed morphology and physical dormancy of several North American Rhus species (Anacardiaceae). Seed Science Research 9, 247–258.CrossRefGoogle Scholar
Liu, Y, Baskin, CC, Baskin, JM, Yang, J, Cao, M and Wen, B (2021) Seed dormancy profiles for species and individuals at the community level along a latitudinal gradient from tropical to temperate. Plant Biology 23, 420–426.CrossRefGoogle Scholar
Lorenzi, H (1992) Arvores brasileiras. Manual de identifiacao e cultivo de plantas arboreas nativas do Brasil. Nova Odessa, Editora Plantarum.Google Scholar
Lu, Y, Ranjitkar, S, Harrison, RD, Xu, J, Ou, X, Ma, X and He, J (2017) Selection of native tree species for subtropical forest restoration in southwest China. PLoS ONE 12, e0170418.CrossRefGoogle ScholarPubMed
Mabberley, DJ (2017) The plant-book. A portable dictionary of plants, their classification and uses (4th edn). Cambridge, Cambridge University Press.Google Scholar
Madhava Rao, VN, Sambashiva Rao, IK and Vazier Hassan, M (1957) Studies on certain aspects of the germination of seeds of cashew (Anacardium occidentale Linn.). Indian Journal of Agricultural Sciences 27, 25–34.Google Scholar
Manchester, SR (1994) Fruits and seeds of the middle Eocene nut beds flora, Clarno formation, Oregon. Paleontographica Americana 58, 1–205. Including 70 plates.Google Scholar
Manchester, SR and Judd, WS (2022) Extinct anacardiaceous samaras and sumac-like leaves from the Eocene of western North America. International Journal of Plant Sciences 183, 357–366.CrossRefGoogle Scholar
Manchester, SR, Wilde, V and Collinson, ME (2007) Fossil cashew nuts from the Eocene of Europe: biogeographic links between Africa and South America. International Journal of Plant Sciences 168, 1199–1206.CrossRefGoogle Scholar
Mandon-Dalger, I, Clergeau, P, Tassin, J, Rivièe, J-N and Gatti, S (2004) Relationships between alien plants and an alien bird species on Reunion Island. Journal of Tropical Ecology 20, 635–642.CrossRefGoogle Scholar
Mandujano, S, Gallina, S and Bullock, SH (1994) Frugivory and dispersal of Spondias purpurea (Anacardiaceae) in a tropical deciduous forest. Revista de Biologia Tropical 42, 107–114.Google Scholar
Manning, JC and Van Staden, J (1987) The systematic significance of testa anatomy in the Leguminosae – an illustrated survey. South African Journal of Botany 53, 210–230.CrossRefGoogle Scholar
Marín, WA and Flores, EM (2002) Astronium graveolens Jacq, pp. 311–313 in Vozzo, JA (Ed.) Tropical tree seed manual. USDA Forest Service. Agricultural Handbook Number 721.Google Scholar
Marshall, RC (1939) Silviculture of the trees of Trinidad and Tobago, British West Indies. Oxford, Oxford University Press.Google Scholar
McLaren, KP and McDonald, MA (2003) The effects of moisture and shade on seed germination and seedling survival in a tropical dry forest in Jamaica. Forest Ecology and Management 183, 61–75.CrossRefGoogle Scholar
Mederos Molina, S and Trujillo, MI (1999) Techniques for in vitro germination in Pistacia species. South African Journal of Botany 65, 149–152.CrossRefGoogle Scholar
Mensbruge, GDL (1966) La germination et les plantules des essences arborees de la foret dense humide de la Cote D'Ivoire. Nogent-Sur-Marne, France, Centre Technique Forestier Tropical No. 26.Google Scholar
Millones-Yamunaqué, AM, Delgado-Paredes, GE, Vásques-Díaz, C and Rojas-Idrogo, C (2021) Callus induction, clonal propagation and in vitro germplasm conservation of ‘hualtaco’ Loxopterygium huasango Spruce ex Engl. (Anacardiaceae). Scientia Agropecuaria 12, 545–556.Google Scholar
Miquel, S (1987) Morphologie fonctionnelle de plantules d'especes forestieres du Gabon. Bulletin du Museum National, d'Histoire Naturelle, Paris, 4e Serie 9, Section B, Adansonia 1, 101–121 (with English summary).Google Scholar
Mitchell, JD and Mori, SA (1987) The cashew and its relatives (Anacardium: Anacardiaceae). Memoires of the New York Botanical Garden 42, 1–76.Google Scholar
Mitchell, JD, Daly, D, Pell, SK and Randrianasola, A (2006) Poupartiopsis gen. nov. and its context in Anacardiaceae classification. Systematic Botany 31, 337–348.CrossRefGoogle Scholar
Montoya Maquin, JM (1972) Ecofisiologia de la germinacion de Haplorhus peruviana Engl. (Anacardiaceae), II, Influence de tratamientos pregerminatorios, e de regimens termicos y foticos. Biota 9, 84–95 (with English abstract).Google Scholar
Morrero, J (1949) Tree seed data from Puerto Rico. Caribbean Forester 10, 11–30.Google Scholar
Moyo, M, Kulkarni, MG, Finnie, JF and Van Staden, J (2009) After-ripening, light conditions, and cold stratification influence germination of marula [Scleriocarya bierrea (A. Rich.) Hochst. subsp. caffra (Sond.) Kokwaro] seeds. HortScience 44, 119–124.CrossRefGoogle Scholar
Msanga, HP (1998) Seed germination of indigenous trees in Tanzania: including notes on seed processing, storage, and plant uses. Vancouver, University of British Columbia Press.Google Scholar
Msanga, HP and Berjak, P (2004) Seed biology of Uapaca kirkiana, Sorindeia madagascariensis and Bridelia micrantha. IPGRI. Forest Genetic Resources Research Highlights 2004, 9.Google Scholar
Muñoz, MR and Fuentes, ER (1989) Does fire induce shrub germination in Chilean chaparral? Oikos 56, 177–181.CrossRefGoogle Scholar
Murali, KS (1997) Patterns of seed size, germination and seed viability of tropical tree species in southern India. Biotropica 29, 271–279.CrossRefGoogle Scholar
Mytinger, L and Williamson, GB (1987) The invasion of Schinus into saline communities of Everglades National Park. Florida Scientist 50, 7–12.Google Scholar
Naithani, SC, Naithani, R, Varghese, B, Godheja, JK and Sahu, KK (2004) Conservation of four tropical forest tree seeds from India, pp. 174–191 in Sacandé, M; Jøker, C; Dulloo, ME and Thomsen, KA (Eds) Comparative storage biology of tropical tree seeds. Rome, International Plant Genetic Resources Institute.Google Scholar
Nandeshwar, DL, Nigi, KS and Patra, AK (2005) Effect of seed grading on germination pattern and seedling development of Buchanania lanzan Spreng. Indian Forester 131, 1241–1243.Google Scholar
Nchanji, AC and Plumptre, AJ (2003) Seed germination and early seedling establishment of some elephant-dispersed species in Banyang-Mbo Wildlife Sanctuary, south-western Cameroon. Journal of Tropical Ecology 19, 229–237.CrossRefGoogle Scholar
Ne'eman, G, Henig-Sever, N and Eshel, A (1999) Regulation of the germination of Rhus coriaria, a post-fire pioneer, by heat, ash, pH, water potential and ethylene. Physiologia Plantarum 106, 47–52.CrossRefGoogle Scholar
Neya, O, Hoekstra, FA and Golovina, EA (2008) Mechanism of endocarp-imposed constraints of germination of Lannea microcarpa seeds. Seed Science Research 18, 13–24.CrossRefGoogle Scholar
Ng, FSP (1973) Germination of fresh seeds of Malaysian trees. Malaysian Forester 36, 54–65.Google Scholar
Ng, FSP (1978) Strategies for establishment in Malayan forest trees, pp. 129–162 in Tomlinson, PB (Ed.) Tropical trees as living systems. Cambridge, Cambridge University Press.Google Scholar
Ng, FSP (1980) Germination ecology of Malaysian woody plants. Malaysian Forester 43, 406–438.Google Scholar
Ng, FSP (1991) Manual of forest fruits, seeds and seedlings, vol. 1. Kuala Lumpur, Forest Research Institute Malaysia.Google Scholar
Nichols, G (2005) Growing Rare Plants: A Practical Handbook on Propagating the Threatened Plants of Southern Africa. Southern African Botanical Diversity Network Report No. 36. Pretoria, SABONET.Google Scholar
Nilsen, ET and Muller, WH (1980) A comparison of the relative naturalization ability of two Schinus species in southern California. Bulletin of the Torrey Botanical Club 107, 51–56.CrossRefGoogle Scholar
Nokes, J (1986) How to grow native plants of Texas and the Southwest. Austin, Texas, Monthly Press.Google Scholar
Nunes, YRF, Fagundes, M, Almeida, HS and Veloso, MDM (2008) Aspectos ecologicos da aroeira (Myracrodruon urundeuva Allemao – Anacardiaceae): fenologia e germinacao de sementes. Revista Arvore 32, 233–243 (with English abstract).CrossRefGoogle Scholar
Oboho, EG and Nwaihu, ED (2016) The seed factor in forest establishment. Net Journal of Agricultural Science 4, 15–21.Google Scholar
Oliveira, JMS and Mariath, JEA (2015a) Initial development of the endocarp in Lithraea brasiliensis Marchand (Anacardiaceae) with taxonomic notes. Anais da Academia Brasileira de Ciencias 87, 1711–1716.CrossRefGoogle ScholarPubMed
Oliveira, JMS and Mariath, JEA (2015b) Endocarp development in Schinus terebinthifolius Raddi (Anacardiaceae). Iheringia, Serie Botanica 79, 177–183.Google Scholar
Oliveira, MCP and Oliveira, GJ (2008) Superacao da dormencia de sementes de Schinopsis brasiliensis. Ciencia Rural 38, 251–254 (with English abstract).CrossRefGoogle Scholar
Oliveira, GM, Matias, JR, Ribeiro, RD, Barbosa, LG, Silva, JESB and Dantas, BF (2014a) Germinacao de sementes de especies arboreas nativas da caatinga em diferentes temperaturas. Scientia Plena 10, 1–6 (with English abstract).Google Scholar
Oliveira, GM, Matias, JR, Silva, PP, Ribeiro, RC and Dantas, BF (2014b) Germinacao de sementes de aroeira-do-sertao (Myracrodruon urundeuva Fr. All.) e mororo (Bauhinia cheilantha (Bong) Stend.) em diferentese condutividades eletricas. Revista Sodebras 9, 70–73.Google Scholar
Oliveira, FTG, Vitória, RZ, Arantes, SD, Schmildt, O, Viana, A, Malikouski, RG and Barros, BLA (2018) Qualidade fisiologica de sementes de aroeira em funcao das condicoes de armazenamento. Nucleus 15, 567–574 (with English summary).CrossRefGoogle Scholar
Oliveira, GM, Silva, FFS, Araujo, MN, Costa, DCC, Gomes, SEV, Matias, JR, Angelotti, F, Cruz, CRP, Seal, CE and Dantas, BF (2019) Environmental stress, future climate, and germination of Myracrodruon urundeuva seeds. Journal of Seed Science 41, 32–43.CrossRefGoogle Scholar
Olmez, A, Gokturk, A and Temel, F (2007) Effects of some pretreatments on seed germination of nine different drought-tolerant shrubs. Seed Science & Technology 35, 75–87.CrossRefGoogle Scholar
Olmez, Z, Yahaoglu, Z, Temel, F and Gokturk, A (2008) Effects of some pretreatments on germination of bladder-senna (Colutea armena Boiss. and Huet.) and smoke-tree (Cotinus coggygria Scop.) seeds. Journal of Environmental Biology 29, 319–323.Google ScholarPubMed
Olmez, A, Gokturk, A, Karasah, B and Yilmaz, H (2009) Effects of cold stratification and sulphuric acid pre-treatments on germination of three provenances of smoke-tree (Cotinus coggygria Scop.) seeds in greenhouse and laboratory conditions. African Journal of Biotechnology 8, 4964–4968.Google Scholar
Osada, N (2005) Influence of between-year variation in the density of Rhus trichocarpa fruits on the removal of fruit by birds. Plant Ecology 176, 195–202.CrossRefGoogle Scholar
Pacheco, MV, Matos, VP, Ferreira, RLC, Feliciano, ALP and Pinto, KMS (2006) Efeito de temperaturas e substrates na germinacao de sementes de Myracrodruon urundeuva Fr. All. (Anacardiaceae). Revista Arvore 30, 359–367 (with English abstract).CrossRefGoogle Scholar
Pair, JC and Khatamian, H (1982) Propagation and growing of the Chinese pistache. Combined Proceedings of the International Plant Propagator's Society 32, 497–503.Google Scholar
Pakkad, G, Torre, F, Elliott, S and Blakesley, D (2003) Selecting seed trees for a forest restoration program: a case study using Spondias axillaris Roxb. (Anacardiaceae). Forest Ecology and Management 182, 363–370.CrossRefGoogle Scholar
Panda, BM and Hazra, S (2009) Seedling culture of Semicarpus anacardium L. Seed Science and Biotechnology 3, 54–59.Google Scholar
Panetta, FD and McKee, J (1997) Recruitment of the invasive ornamental, Schinus terebinthifolius, is dependent upon frugivores. Australian Journal of Ecology 22, 432–438.CrossRefGoogle Scholar
Pell, SK (2004) Molecular systematics of the cashew family (Anacardiaceae). PhD thesis, Louisiana State University, Baton Rouge.Google Scholar
Pell, SK, Mitchell, JD, Lowry, PP III, Randrianasolo, A and Urbatsch, LE (2008) Phylogenetic split of Malagasy and African taxa of Protorhus and Rhus (Anacardiaceae) based on cpDNA trnL-trnF and nrDNA ETS and ITS sequences data. Systematic Botany 33, 375–383.CrossRefGoogle Scholar
Pell, SK, Mitchell, JD, Miller, AJ and Lobova, TA (2011) Anacardiaceae, pp. 7–50 in Kubitzki, K (Ed.) The families and genera of flowering plants, vol. 10. Berlin, Springer.Google Scholar
Penner, R, Moodie, GEE and Standiforth, RJ (1999) The dispersal of fruits and seeds of poison-ivy, Toxicodendron radicans, by ruffed grouse, Bonasa umbellus, and squirrels, Tamaiasciurus hudsonicus and Sciurus carolinensis. Canadian Field-Naturalist 113, 616–620.Google Scholar
Pereira, WVS, Faria, JMR, Tonetti, OAO and Silva, EAA (2012) Desiccation tolerance of Tapirira obtusa seeds collected from different environments. Revista Brasileira de Sementes 34, 388–396.CrossRefGoogle Scholar
Pereira, MP, Corrêa, , Polo, M, Castro, EM, Cardoso, AA and Pereira, FJ (2016) Seed germination of Schinus molle L. (Anacardiaceae) as related to its anatomy and dormancy alleviation. Seed Science Research 26, 351–361.CrossRefGoogle Scholar
Pienaar, M and von Teichman, I (1998) The generic position of Lithraea brasiliensis Marchand (Anacardiaceae): evidence from fruit and seed structure. Botanical Journal of the Linnean Society 126, 327–337.Google Scholar
Pijut, PM (2008) Cotinus P. Mill. Smoketree, pp. 438–441 in Bonner, FT and Karrfalt, RP (Eds) The woody plant seed manual. USDA Forest Service. Agricultural Handbook Number 727.Google Scholar
Piotto, B (1995) Influence of scarification and prechilling on the germination of seeds of Pistacia lentiscus. Seed Science and Technology 23, 659–663.Google Scholar
Pipinis, E, Milios, E, Tomazos, N and Smiris, P (2014) Breaking dormancy and germination of Cotinus coggygria Scop. seeds by means of sulphuric acid scarification, cold stratification and gibberellic acid. Silva Balcanica 15, 38–46.Google Scholar
Pipinis, E, Milios, E, Aslanidou, M, Mavrokordopoulou, O, Efthymiou, E and Smiris, P (2017) Effects of sulphuric acid scarification, cold stratification and plant growth regulators on the germination of Rhus coriaria L. seeds. Journal of Environmental Protection and Ecology 18, 544–552.Google Scholar
Prasad, R and Kandya, AK (1992) Handling of forestry seeds in India. New Delhi, Associated Publishing Company.Google Scholar
Pritchard, HW, Daws, MI, Fletcher, BJ, Gamémé, CS, Msanga, HP and Omondi, W (2004) Ecological correlates of seed desiccation tolerance in tropical African dryland trees. American Journal of Botany 91, 863–870.CrossRefGoogle ScholarPubMed
Prota4u (Plant Resources of Tropical Africa). Ozoroa insignis Delile. Available at: https://www.prota4u.org/database/protav8.asp?g=pe&p=Ozoroa+insignis+Delile (accessed 30 December 2021).Google Scholar
Pullman, GS, Bucalo, K, Determann, RO and Curse-Sanders, JM (2021) Seed cryopreservation and germination of Rhus glabra and the critically endangered species Rhus michauxii. Plants 10, 2277.CrossRefGoogle ScholarPubMed
PZA.SANBI a (PlanZAfrica. South Africa National Biodiversity Institute). Searsia chirindensis. Available at: http://pza.sanbi.org/searsia-chirindensis (accessed 4 January 2022).Google Scholar
PZA.SANBI b (PlanZAfrica. South Africa National Biodiversity Institute). Searsia discolor. Available at: http://pza.sanbi.org/searsia-discolor (accessed 4 January 2022).Google Scholar
PZA.SANBI c (PlanZAfrica. South Africa National Biodiversity Institute). Searsia lucida. Available at: http://pza.sanbi.org/searsia-lucida (accessed 4 January 2022).Google Scholar
Qu, X, Baskin, JM and Baskin, CC (2010) Whole-seed development in Sicyos angulatus (Cucurbitaceae, Sicyeae) and a comparison with the development of water-impermeable seeds in five other families. Plant Species Biology 25, 185–192.CrossRefGoogle Scholar
Raich, JW and Khoon, GW (1990) Effects of canopy openings on tree seed germination in a Malaysian dipterocarp forest. Journal of Tropical Ecology 6, 203–217.CrossRefGoogle Scholar
Rasmussen, GA and Wright, HA (1988) Germination requirements of flameleaf sumac. Journal of Range Management 41, 48–52.CrossRefGoogle Scholar
Rathiesh, P, Negi, AK and Singh, D (2019) Effect of seed size on germination of Semecarpus anacardium (marking nut) in Garhwal Himalaya. International Journal of Current Microbiology and Applied Sciences 8, 2590–2596.CrossRefGoogle Scholar
Refka, Z, Mustapha, K and Ali, F (2013) Seed germination characteristics of Rhus tripartitum (Ucria) Grande and Ziziphus lotus (L.): effects of water stress. International Journal of Ecology 2013, e819810.CrossRefGoogle Scholar
Rizzini, CT (1965) Experimental studies on seedling development of Cerrado woody plants. Annals of the Missouri Botanical Garden 52, 410–426.CrossRefGoogle Scholar
Rodríguez-Arévalo, I, Mattana, E, García, L, Liu, U, Lira, R, Dávila, P, Hudson, A, Pritchard, HW and Ulian, T (2017) Conserving seeds of useful wild plants of Mexico: main issues and recommendations. Genetic Resources and Crop Evolution 64, 1141–1190.CrossRefGoogle Scholar
Rojas-Rodríguez, F and Torres-Córdoba, G (2015) Arboles del Valle Central de Costa Rico reproduccion. Cirrí rojo (Mauria heterophylla Kunth). Revista Forestal Mesoamericana Kurú 12, 52–54 (with English abstract).CrossRefGoogle Scholar
Rowe, DB and Blazich, FA (2008) Rhus L. Sumac, pp. 954–960 in Bonner, FT and Karrfalt, RP (Eds) The woody plant seed manual, USDA Forest Service. Agricultural Handbook Number 727.Google Scholar
Sabbaiah, CC (1982–1983) Effect of pre-soaking in organic solvents on seed germination and seedling growth of cashew. Scientia Horticulturae 18, 137–142.CrossRefGoogle Scholar
Salomão, AN (2002) Tropical seed species’ responses to liquid nitrogen exposure. Brazilian Journal of Plant Physiology 14, 133–138.CrossRefGoogle Scholar
Samarasinghe, BRCP, Jayasuriya, KMGG, Gunaratne, AMTA, Senanayaka, MC and Dixon, KW (2022) Seed dormancy and germination behaviour of tropical rainforest tree species from Sri Lanka. Seed Science Research 32, 94–103.CrossRefGoogle Scholar
Sánchez, JA, Pernús, M, Torres-Arias, Y, Barrios, D and Dupuig, Y (2019) Dormancia y germinacion en semillas de argoles y arbustos de Cuba: implicaciones para la restauracion ecologica. Acta Botanica Cubana 218, 77–108 (with English abstract).Google Scholar
Santos, SRN, Bruno, RLA, Silva, KRG, Aalves, EU, Pacheco, MV and Andrade, AP (2014) Adequacy of methodology for germination of diaspores of barauna, Schinopsis brasiliensis (Anacardiaceae). Bioscience Journal 30, 737–745.Google Scholar
Saplaco, SR and Revilla, AV (1973) Comparative seed germination and seedling height growth of cashew (Anacardium occidentale). The Phillipine Lumberman 19, 16–18.Google Scholar
Sautu, A, Deago, J and Condit, R (1999) Recoleccion y germinacion de 50 especies arbvoreas nativas de Panama. Memorias del II simposio advances en la produccion de semillas forestales en America Latina, 18–22 Octubre, Santo Domingo, Republica Dominicana. CATIE, Turrialba, Costa Rica.Google Scholar
Sautu, A, Baskin, JM, Baskin, CC, Deago, J and Condit, R (2007) Classification and ecological relationships of seed dormancy in a seasonal moist tropical forest, Panama, Central America. Seed Science Research 17, 127–140.CrossRefGoogle Scholar
Schiff, NM, Connor, KF and Devall, MS (2004) Germination conditions for poison ivy, pp. 531–532 in Connor, KF (Ed.) Proceedings of the 12th biennial southern silvicultural research conference. USDA Forest Service, Southern Research Station, Asheville, NC. General Technical Report SRS-71.Google Scholar
Seeds.com Germination guide for Operculicarya decaryi. Available at: https://b-and-t-world-seeds.com/cartall.asp?species=Operculicarya%20decaryi&sref=74948 (accessed 30 December 2021).Google Scholar
Shafik, Y and Kettanch, MS (1971–72) The effect of stratification, sulfuric acid and combination treatments on germination percentage of seed of wild Pistacia (Pistacia khinjuk) stocks. Mesopotamia Journal of Agriculture 7, 37–43.Google Scholar
Sharma, SK and Rajeswaran, S (1970) A further study of phenology and nursery behaviour of some Andaman timber species. Indian Forester 96, 89–94.Google Scholar
Silva, JPG, Marango, LC, Feliciano, ALP, Ferreira, RLC, Souza, TOB and Sousa, DLS (2021) Emergencia e morfologia da plantula de Thyrsodium spruceanum Benth. a partir de diasporos coltados na chuva de sementes em Floresta Atlantica. Journal of Environmental Analysis and Progress 6, 240–247 (with English abstract).CrossRefGoogle Scholar
Stone, EC and Juhren, G (1951) The effect of fire on the germination of the seed of Rhus ovata Wats. American Journal of Botany 38, 368–372.CrossRefGoogle Scholar
Subbiah, A, Ramdhani, S, Pammenter, NW, Macdonald, AHH and Sershen, (2019) Towards understanding the incidence and evolutionary history of seed recalcitrance: an analytical review. Perspectives in Plant Ecology, Evolution and Systematics 37, 11–19.CrossRefGoogle Scholar
Sunshine-seeds a Mosquitoxylum jamaicense. Available at: https://www.sunshine-seeds.de/product_info.php?products_id=55160&language=en (accessed 30 December 2021).Google Scholar
Sunshine-seeds b Operculicarya decaryi. Available at: http://www.sunshine-seeds.de/Operculicarya-decaryi-39589p.html?language=en (accessed 30 December 2021).Google Scholar
Sunshine-seeds c Pleiogynium cerasiferum. Available at: http://www.sunshine-seeds.de/Operculicarya-decaryi-39589p.html?language=en (accessed 30 December 2021).Google Scholar
Takasaki, H (1983) Seed dispersal by chimpanzees: a preliminary note. African Study Monographs 3, 105–108.Google Scholar
Tang, AJ, Tian, MH and Long, CL (2008) Desiccation tolerance and storability of Mangifera persiciformis Wu et Ming seeds, a narrowly distributed and endemic species in China. Seed Science & Technology 36, 486–490.CrossRefGoogle Scholar
Tarszisz, E, Tomlinson, S, Harrison, ME, Morrough-Bernard, HC and Munn, AJ (2018) Gardeners of the forests: effects of seed handling and ingestion by organgutans on germination success of peat forest plants. Biological Journal of the Linnean Society 123, 125–134.CrossRefGoogle Scholar
Tassin, J, Rivière, J-N and Clergeau, P (2007) Reproductive versus vegetative recruitment of the invasive tree Schinus terebenthifolius: implications for restoration on Reunion Island. Restoration Ecology 15, 412–419.CrossRefGoogle Scholar
Thusithana, V, Amarasekara, RWK, Jayasuriya, KMGG, Gama-Arachchige, NS, Baskin, CC and Baskin, JM (2021) Seed dormancy of Cardiospermum halicacabum (Sapindaceae) from three precipitation zones in Sri Lanka. Plant Biology 23, 148–155.CrossRefGoogle ScholarPubMed
Tietema, T, Merkesdal, E and Schroten, J (1992) Seed germination of indigenous trees in Botswana. Nairobi, African Centre for Technology Studies.Google Scholar
Tilki, F and Bayraktar, F (2013) Effects of light, temperature and pretreatment on germination of Rhus coriaria L. seeds, pp. 196–200 in International Caucasian forestry symposium, 24–26 October 2013, Artvin Coruh University, Artvin, Turkey.Google Scholar
Troup, RS (1921) The silviculture of Indian trees. Volume I: Dilleniaceae to Leguminosae (Papilionaceae). Oxford, Clarendon Press.Google Scholar
Tsakaldimi, MN and Ganatsas, PP (2002) Treatments improving seeds germination of two Mediterranean sclerophyll species Ceratonia siliqua and Pistacia lentiscus, pp. 119–127 in Naydenova, T; Raev, I; Alexandrov, A; Rossnev, B; Marinov, I; Vassiley, VD; Tsakov, H; Petrova, R; Grozeva, M and Grigorov, G (Eds) Third Balkan scientific conference: study, conservation and utilization of forests resources, 2–6 October 2001, Forest Research Institute, Sofia, Bulgaria.Google Scholar
Tsobeng, A, Akem, M, Avana, M-L, Muchugi, A, Degrande, A, Tchoundjeu, Z, Jamnadass, R and Na'a, F (2020) Tree-to-tree variation in fruits of three populations of Trichoscypha acuminata (Engl.) in Cameroon. Scientific African 7, e00235.CrossRefGoogle Scholar
Turner, SR, Merritt, DJ, Baskin, JM, Baskin, CC and Dixon, KW (2006) Combinational dormancy in seeds of the Western Australian endemic species Diplopeltis huegelii (Sapindaceae). Australian Journal of Botany 54, 565–570.CrossRefGoogle Scholar
Turner, SR, Cook, A, Baskin, JM, Baskin, CC, Tuckett, RE, Steadman, KJ and Dixon, KW (2009) Identification and characterization of the water gap in the physically dormant seeds of Dodonaea petiolaris: a first report of Sapindaceae. Annals of Botany 104, 833–844.CrossRefGoogle ScholarPubMed
Vieira, ALM, Lima, VV, Sevilha, AC and Scariot, A (2008) Consequences of dry-season seed dispersal on seedling establishment of dry forest trees: should we store seeds until the rains? Forest Ecology and Management 256, 471–481.CrossRefGoogle Scholar
Virgens, IO, Castro, RD, Fernandez, LG and Pelacani, CR (2012) Comportamento fisiologico de sementes de Myracrodruon urundeuva Fr. All. (Anacardiaceae) submitidas a factores abioticos. Ciencia Florestal 22, 681–692 (with English abstract).CrossRefGoogle Scholar
von Teichman, I (1987) Development and structure of the pericarp of Lannea discolor (Sonder) Engl. (Anacardiaceae). Botanical Journal of the Linnean Society 95, 125–135.CrossRefGoogle Scholar
von Teichman, I (1988a) Development and structure of the seed-coat of Lannea discolor (Sonder) Engl. (Anacardiaceae). Botanical Journal of the Linnean Society 96, 105–117.CrossRefGoogle Scholar
von Teichman, I (1988b) Notes on the ontogeny and structure of the seed-coat of Sclerocarya birrea (Richard) Hochst. subsp. caffra (Sonder) Kokwaro (Anacardiaceae). Botanical Journal of the Linnean Society 98, 153–158.CrossRefGoogle Scholar
von Teichman, I (1989) Reinterpretation of the pericarp of Rhus lancea (Anacardiaceae). South African Journal of Botany 55, 383–384.CrossRefGoogle Scholar
von Teichman, I (1990) Pericarp and seed coat structure in Tapirira guianeensis (Spondiadeae: Anacardiaceae). South African Journal of Botany 56, 435–439.CrossRefGoogle Scholar
von Teichman, I (1991) Pericarp structure in Protorhus longifolia (Bernh.) Engl. (Anacardiaceae) and its taxonomic significance. Botanical Bulletin of Academica Sinica 32, 121–128.Google Scholar
von Teichman, I (1998) Micromorphological structure of the fruit and seed of Smodingium argutum (Anacardiaceae), as an adaptation to its natural habitat. South African Journal of Botany 64, 121–127.CrossRefGoogle Scholar
von Teichman, I and Robbertse, PJ (1986) Development and structure of the pericarp and seed of Rhus lancea L. fil. (Anacardiaceae), with taxonomic notes. Botanical Journal of the Linnean Society 93, 291–306.CrossRefGoogle Scholar
von Teichman, I and van Wyk, A (1991) Taxonomic position of Rhus problematodes (Anacardiaceae): evidence from fruit and seed structure. South African Journal of Botany 57, 29–33.CrossRefGoogle Scholar
von Teichman, I and van Wyk, A (1996) Taxonomic significance of the pericarp and seed structure in Heeria argentea (Thunb.) Meisn. (Anacardiaceae), including reference to pachychalazy and recalcitrance. Botanical Journal of the Linnean Society 122, 335–352.CrossRefGoogle Scholar
von Teichman, I, Small, JGC and Robbertse, PJ (1986) A preliminary study of the germination of Sclerocarya birrea subsp. caffra. South African Journal of Botany 52, 145–148.CrossRefGoogle Scholar
von Teichman, I, Robbertse, PJ and Schoonraad, E (1988) The structure of the seed of Mangifera indica L. and notes on seed characters of the tribe Mangifereae (Anacardiaceae). South African Journal of Botany 54, 472–476.CrossRefGoogle Scholar
Waman, AA, Bohra, P and Norman, A (2018) Chemical pre-treatments improve seed germination and seedling growth in Semecarpus kurzii: an ethnomedicinally important plant. Journal of Forest Research 29, 1283–1289.CrossRefGoogle Scholar
Wang, JH, Chen, W, Baskin, CC, Baskin, JM, Cui, XL, Zhang, Y, Qiang, W-Y and Du, G (2012) Variation in seed germination of 86 subalpine forest species from the eastern Tibetan Plateau: phylogeny and life-history correlates. Ecological Research 27, 453–465.CrossRefGoogle Scholar
Wannan, BS (2006) Analysis of generic relationships in Anacardiaceae. Blumea 51, 165–195.CrossRefGoogle Scholar
Wannan, BS and Quinn, CJ (1990) Pericarp structure and generic affinities in Anacardiaceae. Botanical Journal of the Linnean Society 102, 225–252.CrossRefGoogle Scholar
Wannan, BS and Quinn, CJ (1991) Floral structure and evolution in the Anacardiaceae. Botanical Journal of the Linnean Society 107, 349–385.CrossRefGoogle Scholar
Washitani, I (1988) Effects of high temperatures on the permeability and germinability of the hard seeds of Rhus javanica L. Annals of Botany 62, 13–16.CrossRefGoogle Scholar
Weber, GP, Wiesner, LE and Lund, RE (1982) Improving germination of skunkbush sumac and serviceberry seeds. Journal of Seed Technology 7, 60–71.Google Scholar
Weeks, A, Zapata, F, Pell, SK, Daly, DC, Mitchell, JD and Fine, PVA (2014) To move or to evolve: contrasting patterns of intercontinental connectivity and climatic niche evolution in ‘Terebinthaceae’ (Anacardiaceae and Burseraceae). Frontiers in Genetics 5, 409.CrossRefGoogle ScholarPubMed
Weirsbye, IM and Witkowski, ETF (2002) Multiple use management of natural forests and Savanna Woodlands: policy refinements and scientific progress, pp. 218–255 in Seydack, AHW (Ed.) Proceedings of natural forests and Savanna Woodlands symposium III. Pretoria, South Africa, Department of Water Affairs and Forestry, Indigenous Forest Management.Google Scholar
Wendt, T and Mitchell, JD (1995) A new species of Tapirira (Anacardiaceae) from the Isthmus of Tehuantepec, Mexico. Brittonia 47, 101–108.CrossRefGoogle Scholar
Wheeler, GS and Madeira, PT (2017) Phylogeny within the Anacardiaceae predicts host range of potential biological control agents of Brazilian peppertree. Biological Control 108, 22–29.CrossRefGoogle Scholar
Wilkinson, CA, DeMarco, HA and Jones, L (1996) Report to the United States Department of the Army: Viability, Germination and Propagation of Rhus michauxii at Fort Pickett. Blacksburg, VA, USA, Virginia Tech Southern Piedmont Agricultural Research Station.Google Scholar
Wrangham, RW, Chapman, CA and Chapman, LJ (1994) Seed dispersal by forest chimpanzees in Uganda. Journal of Tropical Ecology 10, 355–368.CrossRefGoogle Scholar
Wright, E (1931) The effect of high temperatures on seed germination. Journal of Forestry 29, 679–687.Google Scholar
Wyatt-Smith, J (1964) Manual of Malayan silviculture for inland forests. Kuala Lumpur, Forest Research Institute Malaysia.Google Scholar
Xu, B-M and Xu, Y-R (1987) Study on dormancy and germination of Toxicodendron vernicifluum seeds. Plant Physiology Communications 6, 50–53 (in Chinese).Google Scholar
Young, DA (1972) The reproductive biology of Rhus integrifolia and Rhus ovata (Anacardiaceae). Evolution 26, 406–414.CrossRefGoogle ScholarPubMed
Young, JA and Young, CG (1992) Seeds of woody plants in North America. Revised and enlarged edition. Portland, Oregon, Dioscorides Press.Google Scholar
Zegers, CD and Lechuga, AC (1978) Antecedentes fenologicos y de germinacion de especies lenosas Chilenas. Ciencias Forestales 1, 31–41 (with English summary).Google Scholar
Zuloaga-Aguilar, S, Briones, O and Orozo-Segovia, A (2010) Effect of heat shock on germination of 23 plant species in pine-oak and montane cloud forests in western Mexico. International Journal of Wildland Fire 19, 759–773.CrossRefGoogle Scholar
Zuloaga-Aguilar, S, Briones, O and Orozo-Segovia, A (2011) Seed germination of montane forest species in response to ash, smoke and heat shock in Mexico. Acta Oecologica 37, 256–262.CrossRefGoogle Scholar
Figure 0

Table 1. Classification of endocarp structure (anatomy) in Anacardiaceae (primarily from Wannan and Quinn, 1990, except Anacardium-type tribe Rhoeae Group D from von Teichman, 1991, 1998; von Teichman and van Wyk, 1996)

Figure 1

Table 2. Types of endocarp and kinds of seed dormancy (or non-dormancy) in Anacardiaceae

Figure 2

Table 3. Endocarp structure included (along with characters of gynoecium, see text) in taxonomic arrangement of Anacardiaceae into two groups (from Wannan and Quinn, 1991; Wannan, 2006)