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Issue: Vol. 438 No. 1: 2 April 2020
Type: Article
Published: 2020-04-02
DOI: 10.11646/phytotaxa.438.1.2
Page range: 6–14
Abstract views: 26
PDF downloaded: 1

Two novel species of Sisyranthus (Apocynaceae—Ceropegieae) from South Africa

African Centre for DNA Barcoding, University of Johannesburg, PO Box 524, Auckland Park 2006, Johannesburg, South Africa
National Herbarium, Pretoria, South African National Biodiversity Institute, Private Bag X101, Pretoria 0001, South Africa Unit for Environmental Science and Management, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
African Centre for DNA Barcoding, University of Johannesburg, PO Box 524, Auckland Park 2006, Johannesburg, South Africa
endemic species Flora of southern Africa Region KwaZulu-Natal Province Mpumalanga Province Sekhukhune Centre of Endemism Sisyranthus sekhukhuniensis Sisyranthus vryheidensis Eudicots

Abstract

Sisyranthus species are cryptic in both their habit and small size of their flowers making them difficult to find in the wild. The genus was last revised in Flora Capensis (1908) and since then, two new species have been described. Currently it comprises 13 recognised species endemic to southern Africa. Many of these are range-restricted and poorly known. In this contribution the genus is further expanded by describing two novel species. Full descriptions, assessment of conservation status, distribution maps and line drawings of the new taxa are presented.