Delosperma echinatum (Lam.) Schwantes var. album [Mesembryanthemum echinatum Lam. var. album]
Coll. Vélins Mus. Natl. Hist. Nat. Paris, vol. 50 : t. 50 (1785) [unsigned]
Copyright reserved. You can try this link to the Muséum national d’histoire naturelle, Paris