Haworthiopsis nigra (Haw.)

Gildenhuys, Sean D. & Klopper, Ronell R., 2016, A synoptic review and new infrageneric classification for the genus Haworthiopsis (Xanthorrhoeaceae: Asphodeloideae), Phytotaxa 265 (1), pp. 1-26 : 16

14. Haworthiopsis nigra (Haw.) Rowley (2013a: 5)

Bas.:— Apicra nigra Haworth (1825: 302) ≡ Aloe nigra (Haw.) Roemer & Schultes (1829: 657) ≡ Haworthia nigra (Haw.) Baker (1880: 203) ≡ Haworthia venosa subsp. nigra (Haw.) Halda (1997: 39) ≡ Haworthia viscosa subsp. nigra (Haw.) Halda (1998: 44) . Type (neotype designated by Breuer & Metzing 1997: 10):— SOUTH AFRICA. Eastern Cape: Campherspoort [QDS: 3324AA], 1947, W.F. Barker 5099 (NBG0068251!). Type (lectotype designated by Breuer 2000: 600):—(icon) “ Haworthia nigra ” in (K).

Distribution: —It has a rather wide distribution and is found in the drier interior parts of the Western and Eastern Cape provinces of South Africa, from near Tsomo in the east to near Merweville in the west.