Book contents
- Frontmatter
- Contents
- List of contributors
- Foreword
- 1 Gentianaceae in context
- 2 Systematics, character evolution, and biogeography of Gentianaceae, including a new tribal and subtribal classification
- 3 Cladistics of Gentianaceae: a morphological approach
- 4 Gentianaceae: a review of palynology
- 5 The seeds of Gentianaceae
- 6 Chemotaxonomy and pharmacology of Gentianaceae
- Index
4 - Gentianaceae: a review of palynology
Published online by Cambridge University Press: 08 August 2009
- Frontmatter
- Contents
- List of contributors
- Foreword
- 1 Gentianaceae in context
- 2 Systematics, character evolution, and biogeography of Gentianaceae, including a new tribal and subtribal classification
- 3 Cladistics of Gentianaceae: a morphological approach
- 4 Gentianaceae: a review of palynology
- 5 The seeds of Gentianaceae
- 6 Chemotaxonomy and pharmacology of Gentianaceae
- Index
Summary
ABSTRACT
Palynology has traditionally been a major source of characters for taxonomic classification in the Gentianaceae. In this survey palynological data from the following genera are presented: Adenolisianthus, Anthocleista, Aripuana, Calolisianthus, Celiantha, Chelonanthus, Chorisepalum, Congolanthus, Coutoubea, Curtia, Deianira, Fagraea, Gentianothamnus, Helia, Hockinia, Irlbachia, Lagenanthus, Lehmanniella, Lisianthius, Macrocarpaea, Neblinantha, Neurotheca, Potalia, Prepusa, Purdieanthus, Rogersonanthus, Saccifolium, Schultesia, Sebaea, Sipapoantha, Symbolanthus, Tachia, Tachiadenus, Tapeinostemon, Tetrapollinia, Wurdackanthus, and Zonanthus. SEM micrographs of pollen from each genus are presented and palynological characters are evaluated from a phylogenetic standpoint. Gilg's (1895) tribal and subtribal division of the Gentianaceae, which was based mainly on pollen morphology, cannot be duly confirmed by the present study, and Struwe et al.'s (2002) classification is followed here.
The majority of taxa in Gilg's (1895) tribe Helieae have variously been referred to the genus “Lisianthus” as sections, to separate genera, or have been partly lumped into one genus. Pollen morphology suggests distinction of one West Indian–Central American group (Lisianthius sensu stricto) with monads and one neotropical group (mainly continental) with compound pollen grains (the Irlbachia complex). The generic name of Lisianthius should be restricted to West Indian and Central American taxa with single pollen grains. Chorisepalum, Macrocarpaea, and Tachia appear to belong to the same group. Gilg's (1895) generic concept is regarded as partly correct as is that of Maguire (1981) and Maguire and Boom (1989). Maas's (1985) broadly circumscribed Irlbachia is not in agreement with these palynological results.
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- Information
- GentianaceaeSystematics and Natural History, pp. 377 - 497Publisher: Cambridge University PressPrint publication year: 2002