Subspecies, varieties, forms and cultivars of plants belonging to the Lithops vallis-mariae group

• Lithops vallis-mariae (Dinter & Schwantes) N.E.Br.: has minutely pitted top surface, which appears uniform to the naked eye, consisting of a large number of ridges with vermiform convolutions. Distribution: Hardap and Karas Regions, Namibia.
• Lithops vallis-mariae C060 30 km SSW of Mariental, Namibia: chalk white, fine pits.
• Lithops vallis-mariae C066 20 km E of Gibeon Station, Namibia: pumice-like texture.
• Lithops vallis-mariae C166 110 km NNE of Keetmanshoop, Namibia: biscuit colored.
• Lithops vallis-mariae C167 (syn. margarethae) TL: Near Berseba, Namibia: top milky, deep lines.
• Lithops vallis-mariae C182 125 km N of Keetmanshoop, Namibia
• Lithops vallis-mariae C238 85 km NE of Keetmanshoop, Namibia
• Lithops vallis-mariae C281 TL: 15 km E of Mariental, Namibia: milky grey with faint lines.
• Lithops vallis-mariae C282 125 km North of Keetmanshoop, Namibia.: broad flat grey body, rocklike.
• Lithops vallis-mariae C296 40 km SSE of Koës, Namibia: marie-biscuit-like.
• Lithops vallis-mariae var. margarethae (Dinter & Schwantes) N.E.Br.
• Lithops vallis-mariae cv. Valley Girl S.A.Hammer: has white flowers.