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ON THE POSITION OF THE GENUS KARIMBOLEA (ASCLEPIADACE AE)
Author(s) -
Liede Sigrid,
Meve Ulrich,
Mahlberg Paul G.
Publication year - 1993
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1993.tb13791.x
Subject(s) - biology , tribe , affinities , genus , taxon , botany , morphology (biology) , zoology , evolutionary biology , anthropology , biochemistry , sociology
The position of the rare and monotypic genus Karimbolea is clarified. Its tribal affinities are examined using mainly floral characters; the former tentative placement in the tribe Asclepiadeae (Asclepiadaceae) is confirmed. Characters of vegetative and floral morphology are used to determine the position of the genus within the tribe Asclepiadeae. Sarcostemma is identified as the most likely sister taxon of Karimbolea. Triterpenoid data obtained from gas‐liquid chromatographic analysis of latex are used to test this hypothesis. This paper forms the first study within the Asclepiadaceae using two independent data sets to clarify the position of a taxon of uncertain affinities.