Smith, G. F. and Hankey, A. (2024) “Delosperma buysii (Aizoaceae subfam. Ruschioideae), a new purple-white-flowered vygie species from north-central South Africa”, Phytotaxa. Auckland, New Zealand, 635(3), pp. 238–244. doi: 10.11646/phytotaxa.635.3.5.