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Centaurea in South-West Asia: patterns of distribution and diversity

Published online by Cambridge University Press:  05 December 2011

G. Wagenitz
G. Wagenitz
Affiliation:
Systematisch-Geobotanisches Institut der Universität, Untere Karspüle 2, D-3400 Göttingen, B.R.D.
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Synopsis

In SW Asia 260 species of Centaurea in 38 sections are recognised. Species numbers are highest in S and E Turkey and adjacent Iran and Iraq. East Iran and Afghanistan are poor in species. The number of sections is largest in NE Turkey (and adjacent Transcaucasia). Two hundred and one species are restricted to the area under study; the greatest number of narrow endemics is found in S and E Turkey. The subgenera and sections show quite different patterns of distribution and centres of diversity. The data presented point to E Anatolia and adjacent areas as the foremost centre of evolution for the genus and make probable a relatively recent speciation; an important secondary centre is S Turkey (and of course several other Mediterranean countries too). Some notes are added on the morphological variation in the genus and possible factors influencing its evolution.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 89: Plant Life of South-West Asia , 1986 , pp. 11 - 21
Copyright
Copyright © Royal Society of Edinburgh 1986

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