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Meve, Ulrich ; Liede-Schumann, Sigrid:
Subtribal division of Ceropegieae (Apocynaceae-Asclepiadoideae).
In: Taxon.
Bd. 53
(2004)
Heft 1
.
- S. 61-72.
ISSN 0040-0262
DOI: https://doi.org/10.2307/4135489
Abstract
Monophyly and sister group relationship of Ceropegieae and Marsdenieae, the two Asclepiadoideae tribes possessing erect pollinia, are confirmed by molecular investigation of non-coding cpDNA markers (trnT-L and trnL-F spacers, and the trnL intron). In Ceropegieae, the analyzed taxa fall in four subclades. The Heterostemma subclade is sister to other three subclades, of which the Conomitra-Leptadenia-Orthanthera subclade is sister to the Anisotoma-Neoschumannia-Riocreuxia-Sisyranthus subclade and to the large subclade comprising the stem-succulent stapeliads, Brachystelma and Ceropegia. Following these results, subdivision of Ceropegieae into four subtribes, Anisotominae, Heterostemminae, Leptadeniinae and Stapeliinae, is proposed.