South African Species of Cynodon (Gramineae)

Abstract

The genus Cynodon Rich. is represented in South Africa by C. aethiopicus Clayton et Harlan (2n=18), C. dactylon (L.) Pers.var.dactylon (2n=36), var.aridus Harlan et de Wet (2=18), var.elegans Rendle (2n=36) and var.polevansii (Stent) Harlan et de Wet (2n= 36), C. incompletus Nees var.incompletus (2n=18) and var.hirsutus (Stent) de Wet et Harlan (2n=18), and C. transvaalensis Burtt-Davy (2n=18).Several sterile, triploid hybrids between C. dactylon var.dactylon and the diploid (2n=18) taxa were collected.One such hybrid is widely cultivated and known taxonomically as C. magennisii Hurcombe.The cultivated C. bradleyi Stent was shown to represent a hybrid between the two varieties of C. incompletus.UITTREKSEL SUID-AFRIKAANSE SOORTE VAN CYNODON (GRAMINEAE).Die geslag Cynodon Rich.word in Suid-Afrika verteenwoordig deur