6 495757 Haworthia retusa (L.) Duval [125 44647 Aloe retusa L.] Liliaceae
J.M.F.A.H.I. Salm-Reifferscheidt-Dyck [Salm-Dyck], Aloes Mesembr., vol. 1 (Aloe): , fig. 9.3 (1849)