Haworthiopsis × major (Salm-Dyck) Gildenh. & Klopper

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 : 21

8. Haworthiopsis × major (Salm-Dyck) Gildenh. & Klopper comb. et. stat. nov.

Bas.:— Aloe tortuosa var. major Salm-Dyck (1837: t.6) ≡ Haworthia tortuosa var. major (Salm-Dyck) Baker (1896: 336) . Type (lectotype designated by Breuer 1998: 259): Photographic illustration in Salm-Dyck (1837: Aloe t.6).

Notes:— Initially described as a variety of Aloe tortuosa Salm-Dyck (1837) . In later years Aloe pseudorigida Salm-Dyck (1817: 9) , Haworthia curta Haworth (1819: 60) and Haworthia tortella Haworth (1819: 61) were transferred to Haworthia tortuosa (Haw.) Haw. as varieties thereof. All of these and H. tortuosa var. major (Salm-Dyck) Baker are of hybrid origin. Since each description was based on individual clones, and it is unlikely that wild populations exist or existed, it does not seem sensible to have hybrids classified as varieties of another hybrid. All of these are here treated as separate hybrid taxa at species level.