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Plant Biol (Stuttg) 2001; 3(6): 622-628
DOI: 10.1055/s-2001-19367
Original Paper
Georg Thieme Verlag Stuttgart ·New York

RAPD Analysis and Taxonomic Reconsideration of the Ceropegia aristolochioides Complex (Apocynaceae-Ceropegieae)

U. Meve 1 , P. S. Masinde 2 , U. Sentner 1 , S. Liede 1
  • 1 Lehrstuhl für Pflanzensystematik, Universität Bayreuth, Bayreuth, Germany
  • 2 East African Museum, National Museum of Kenya, Nairobi, Kenya
Further Information

Publication History

May 9, 2001

October 9, 2001

Publication Date:
02 January 2002 (online)

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Abstract

Flower morphology, karyology and taxonomy of the polymorphic Ceropegia aristolochioides are reviewed. Ten different samples from Africa and Arabia, representing the main morphotypes, were analysed using RAPDs. The dendrogram resulting from cluster analysis is compared with the current taxonomy. Only two subspecies within C. aristolochioides should be recognized, despite considerable differences in floral morphology within both. It is proposed to confine the typical subspecies to tropical Africa and to consider C. aristolochioides ssp. albertina and Ceropegia seticorona as synonyms. C. aristolochioides ssp. deflersiana, easily distinguished by hairy carpels, is restricted to the SW Arabian Peninsula. The formal recognition of varieties within each subspecies, which might be considered with regard to the highly diverse flower morphology, is rejected.

Key words

Morphology - chromosomes - RAPD - Africa - Arabia - Ceropegia aristolochioides - Ceropegia aristolochioides ssp. albertina - Ceropegia aristolochioides ssp. deflersiana - Ceropegia seticorona - C. seticorona var. dilatiloba - taxonomy

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U. Meve

Lehrstuhl für Pflanzensystematik
Universität Bayreuth,

95440 Bayreuth
Germany

Email: ulrich.meve@uni-bayreuth.de

Section Editor: F. Salamini