caa a22 4500 475806913 CHVBK 20180406123749.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1007/BF01089295 doi (NATIONALLICENCE)springer-10.1007/BF01089295 Bruyns P. Bolus Herbarium, University of Cape Town, 7701, South Africa aut Phylogeny and Biogeography of the Stapeliads [Elektronische Daten] 2. Biogeography [P. Bruyns] Data on the distribution of the different genera of the stapeliads have been gathered for the main regions where they occur. A cladistic biogeographical analysis of the stapeliads is carried out and this suggests that the stapeliads radiated southwards and eastwards from a region of origin in the north-east of Africa. In terms of numbers of species and genera, maximal diversity is found in two areas of Africa: the north-eastern corner and in southern Africa. The highest diversity of genera and species is found in southern Africa. Four genera are common to both the north-east of Africa and southern Africa but no species is found in both these areas. For southern Africa the patterns of diversity within southern Africa are discussed in some detail. It is shown that the stapeliads achieve nowhere near the level of diversity found in other succulent groups such as the Crassulaceae and Mesembryanthemaceae but that the stapeliads are more evenly spread over the drier parts of the subcontinent. Springer-Verlag, 2000 Cladistic biogeography nationallicence stapeliads nationallicence southern Africa nationallicence north-east Africa nationallicence centres of diversity nationallicence Plant Systematics and Evolution Springer-Verlag 221/3-4(2000-09-01), 227-244 0378-2697 221:3-4<227 2000 221 606 https://doi.org/10.1007/BF01089295 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01089295 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Bruyns P. Bolus Herbarium, University of Cape Town, 7701, South Africa aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 221/3-4(2000-09-01), 227-244 0378-2697 221:3-4<227 2000 221 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer