BIOSYSTEMATIC STUDY OF PELARGONIUM SECTION LIGULARIA .3. REAPPRAISAL OF SECTION JENKINSONIA

The presumed relationship between P. antidysentericum (Eckl. & Zeyh.) Kostel., P. divisifolium Vorster, Fl dolomiticum Knuth, P. griseum Knu th, P. plurisectum Salter, P. praemorsum (Andr.) Dietr., P. redactum V orster, P. seneciodes L'Herit., P. fenuicaule Knuth, P. tragacanthoide s Burch. and P. trifidum Jacq., based on karyological characters, is c onfirmed by palynological and rbcl. gene sequence studies as well as p henolic compounds. These 11 species are placed in the section Jenkinso nia (Sweet) DC. ampl, J.J.A, van der Walt. The big variation in floral structure in the section is ascribed to convergent evolution and diff erent pollination strategies, Taxonomic treatments of the section and species are presented.