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Issue: Vol. 635 No. 3: 26 Jan. 2024
Type: Article
Published: 2024-01-26
DOI: 10.11646/phytotaxa.635.3.5
Page range: 238-244
Abstract views: 175
PDF downloaded: 7

Delosperma buysii (Aizoaceae subfam. Ruschioideae), a new purple-white-flowered vygie species from north-central South Africa

Ria Olivier Herbarium; Department of Botany; Nelson Mandela University; P.O. Box 77000; Gqeberha; 6031 South Africa
Walter Sisulu National Botanical Garden; South African National Biodiversity Institute; P.O. Box; 2194; Wilro Park; 1731 South Africa
Gauteng province North West province Magaliesberge Eudicots

Abstract

Thus far, six species of Delosperma (Aizoaceae subfam. Ruschioideae) have been recorded from the Gauteng province in north-central South Africa, an essentially summer-rainfall region. Of these, two are purple-flowered, one is purple-white-flowered, while the other species are white- or yellow-flowered. We here describe a further purple-white-flowered species from northwestern Gauteng and adjacent North West province as D. buysii. The new species is contrasted with D. macellum, the only other purple-white-flowered species known from Gauteng. Among other differences, D. buysii has a smaller, more compact growth form in comparison to the larger-growing, often trailing D. macellum, while the sepals of D. buysii are equal in length while those of D. macellum are of two lengths.

 

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