@ARTICLE{TreeBASE2Ref16710,
author = {Philip Mark Moline and Mike Thiv and Gabriel K Ameka and J. P. Ghogue and Evelin Pfeifer and Rolf Rutishauser},
title = {Phylogeny and character evolution in the African clade of Podostemaceae},
year = {2006},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {International Journal of Plant Sciences},
volume = {},
number = {},
pages = {},
abstract = {The African taxa of Podostemaceae are relatively poorly known. New matK sequence data for eight African Podostemaceae species of the genera <i>Dicraeanthus</i>, <i>Djinga</i> and <i>Ledermanniella</i> are combined with sequences representing all major groups in the family to test the placement of the African taxa in the family. All podostemoids studied from continental Africa form a clade that is sister to the Madagascan genera <i>Endocaulos</i> and <i>Thelethylax</i>. The sister of this African-Madagascan lineage is the American genus <i>Podostemum</i> and all Asian podostemoids. Important morphological transformations involving the African clade include the following: (1) A shift from erect to inverted flowers in the spathella is synapomorphic for the African podostemoids, although there is a reversal in <i>Djinga</i>. (2) Unilocular ovaries arising via septum loss may be synapomorphic for the African clade. (3) Crustose (i.e. foliose, disk-like) roots or very broad ribbons covering the rocky substrate like a carpet are derived characters of an African subclade consisting of <i>Dicraeanthus</i>, <i>Djinga</i> and certain members of <i>Ledermanniella</i>. (4) In several species such as <i>Dicraeanthus africanus</i> and <i>Ledermanniella letouzeyi</i> flowers arise endogenously along the stems and in <i>L. letouzeyi</i> even along the leaves, a character that has never been observed in any of the Asian or South American taxa.}
}
Analyses for Study 1487
Citation title: "Phylogeny and character evolution in the African clade of Podostemaceae".
This study was previously identified under the legacy study ID S1431
(Status: Published).