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CYTOTAXONOMIC OBSERVATIONS IN THE GENUS AESCHYNANTHUS(GESNERIACEAE)

Published online by Cambridge University Press:  26 February 2001

M. H. RASHID ,
K. JONG  and
M. MENDUM
M. H. RASHID
Affiliation:
Bangladesh National Herbarium, BARC Complex, Farmgate, Dhaka-1215, Bangladesh
K. JONG
Affiliation:
Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, UK Department of Plant and Soil Science, University of Aberdeen, Aberdeen, UK
M. MENDUM
Affiliation:
Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, UK
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Abstract

This study is a contribution to the further understanding of cytological patterns in Aeschynanthus(Gesneriacaeae). Chromosome numbers are reported for 12 species from six sections; nine of these are new counts. Two basic numbers, x=16 and x=15, are generally encountered. Aeschynanthus gracilis proved to be of exceptional interest, as its rare somatic number, 2n=28, confirms the occurrence of a third basic number, x=14, in the genus. Variation in chromosome number in relation to seed morphology is examined.

Keywords

AeschynanthuschromosomescytotaxonomyGesneriaceaesectional relationships
Type
Research Article
Information
Edinburgh Journal of Botany , Volume 58 , Issue 1 , March 2001 , pp. 31 - 43
Copyright
© Copyright 2001 Trustees of the Royal Botanic Garden, Edinburgh

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