Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-28T05:05:01.913Z Has data issue: false hasContentIssue false
  • English
  • Français

SAXIFRAGA MINUTISSIMA, A NEW SPECIES FROM THE GARHWAL HIMALAYA, INDIA, AND ITS IMPLICATIONS FOR THE TAXONOMY OF THE GENUS SAXIFRAGA (SAXIFRAGACEAE)

Published online by Cambridge University Press:  18 June 2012

R. J. Gornall ,
D. S. Rawat  and
Zhuoxin Zhang
R. J. Gornall
Affiliation:
Department of Biology, University of Leicester, Leicester LE1 7RH, UK. E-mail for correspondence: [email protected]
D. S. Rawat
Affiliation:
Department of Biological Sciences, College of Basic Sciences and Humanities, G.B. Pant University of Agriculture and Technology, Pantnagar 263 145, Uttarakhand, India.
Zhuoxin Zhang
Affiliation:
Department of Biology, University of Leicester, Leicester LE1 7RH, UK. E-mail for correspondence: [email protected]
Get access

Abstract

Saxifraga minutissima D.S.Rawat, a new and extremely small species of Saxifraga (Saxifragaceae), is described from the Garhwal Himalaya, India. It differs from all other species of Saxifraga, except Saxifraga bicuspidata, in having five stamens and lacking petals. It can be distinguished from Saxifraga bicuspidata in having leaves and sepals entire. The finely striate pollen exine pattern of Saxifraga minutissima indicates that the species belongs to Saxifraga section Ciliatae. Its prostrate, axillary leafy shoots and lack of crisped, rufous hairs strongly suggests a place in Saxifraga subsection Serpyllifoliae, where one of its closest relatives may be Saxifraga stella-aurea.

Keywords

PollenSaxifraga minutissimaSaxifraga section Ciliatae subsection SerpyllifoliaeSaxifragaceaeSaxifragellaseeds
Type
Articles
Information
Edinburgh Journal of Botany , Volume 69 , Issue 2 , July 2012 , pp. 211 - 217
Copyright
Copyright © Trustees of the Royal Botanic Garden Edinburgh 2012

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Engler, [H. G.] A. (1891). Saxifragaceae. In: Engler, A. & Prantl, K. (eds) Die natürlichen Pflanzenfamilien, pp. 41–93. Leipzig: W. Engelmann.Google Scholar
Ferguson, I. K. & Webb, D. A. (1970). Pollen morphology in the genus Saxifraga and its taxonomic significance. Bot. J. Linn. Soc. 63(4): 295–311.CrossRefGoogle Scholar
Gornall, R. J. (1987). An outline of a revised classification of Saxifraga L. Bot. J. Linn. Soc. 95(4): 273–292.CrossRefGoogle Scholar
Hooker, J. D. (1846). The Botany of the Antarctic Voyage. London: Reeve Bros.Google Scholar
Kaplan, K. (1981). Embryologische, pollen- und samenmorphologische Untersuchungen zur Systematik von Saxifraga (Saxifragaceae). Bibl. Bot. 134: 1–56, tt.26.Google Scholar
Moore, D. M. (1969). Saxifragodes, a new genus of Saxifragaceae from Tierra del Fuego. Bot. Not. 122: 322–329.Google Scholar
Moore, D. M. (1983). Flora of Tierra del Fuego. St Louis, MO: Missouri Botanical Garden.Google Scholar
Soltis, D. E., Kuzoff, R. K., Mort, M. E., Zanis, M., Fishbein, M., Hufford, L., Koontz, J. & Arroyo, M. K. (2001). Elucidating deep-level phylogenetic relationships in Saxifragaceae using sequences for six chloroplastic and nuclear DNA regions. Ann. Missouri Bot. Gard. 88(4): 669–693.CrossRefGoogle Scholar
Zhang, D. J., Chen, S. Y., Gao, Q. B., Duan, Y. Z. & Chen, S. L. (2008). Circumscription and phylogeny of Saxifraga sect. Ciliatae: Evidence from nrDNA ITS sequences. J. Syst. Evol. 46(5): 667–675.Google Scholar