Multivariate morphometric and allozymic analysis of theConospermum taxifolium (Proteaceae) species complex |
| |
| Authors: | David Mackay David A Morrison |
| |
| Institution: | (1) School of Biological Sciences, University of Sydney, Australia;(2) National Herbarium of New South Wales, Royal Botanic Gardens, Sydney, N.S.W., Australia;(3) Department of Applied Biology, University of Technology, Sydney, Broadway, P.O. Box 123, 2007, N.S.W., Australia |
| |
| Abstract: | A morphometric analysis of 18 attributes of 110 plants of theConospermum taxifolium complex suggests that it consists of three polythetically distinct taxa, corresponding to the traditional concepts ofC. taxifolium
Smith s. str.,C. ericifolium
Smith andC. ellipticum
Smith. Discrimination is possible on the basis of leaf but not flower attributes. Analysis of allozymic variation indicates that the taxa are also genotypically differentiated.C. ericifolium andC. ellipticum are geographically isolated from each other but not fromC. taxifolium, andC. taxifolium is usually ecologically segregated from the other two taxa. Where this ecological segregation breaks down, morphological intermediates sometimes occur as the result of hybridization. |
| |
| Keywords: | Angiosperms Proteaceae Conospermum taxifolium C longifolium Biosystematics numerical taxonomy morphology allozymes electrophoresis Flora of Australia |
| 本文献已被 SpringerLink 等数据库收录！ |
|
