The type genus of the tribe Anacampseroteae Nyananyo ex Rowley (Portulacaceae) is Anacampseros L., comprising (as usually circumscribed) about 25 species of small xerophytic plants possessing a distinctive fruit with deciduous exocarp. Subg. Tuberosae contains two species; Subg. Anacampseros, exclusively African, is divided into Sect. Avonia, which has tiny leaves concealed by stipular scales, and Sect. Anacampseros, with fleshy leaves. Previous researchers have suggested that Anacampseros and the small or monotypic genera Grahamia, Talinaria, Talinopsis and Xenia, the remaining members of the tribe, form a monophyletic group. Gerbaulet (1992) produced a detailed cladogram based on morphological data. Her classification, summarized above, has been disputed by Rowley (1994), who segregates Sects. Anacampseros and Avonia into separate genera and combines all remaining species within the tribe into Grahamia. Hershkovitz and Zimmer's (1997) ITS study of the Portulacaceae suggested relationships among these lineages different from those proposed by either Gerbaulet or Rowley. The intent of the present study is to provide additional phylogenetic information based on plastid sequences, which can be compared to other researchers' cladograms from different data sets. Implications for classification and nomenclature will be examined.

Key words: Anacampseros, cpDNA, Portulacaceae