Subspecies, varieties, forms and cultivars of plants belonging to the Lithops hookeri group
Lithops hookeri(A.Berger) Schwantes:var. hookeriCole numbers:C110, C112, C113, C114, C118, C142B, C340(Vermiculate form)C023, C051, C335, C336TUsually without windows and with rare dusky dots, but with an obscure network of simple and forked groves and lines, and numerous irregular small island enclosed by groves. Margins are irregularly incise with narrow lines tapering out of the grows. The colour of the margins and face island comprises opaque brown or buff or greyish, reddish, pinkish or orange-brown. Channels and grooves are opaque or very obscurely transluscent greenish brown or grey, greyish or brownish green, orange or reddish brown or red. Lines dull dark red. Shoulders as for the face dull grey.
Lithops hookeri var. dabneri(L. Bolus) D.T.Cole: Cole numbersC013, C085, C301Differs from type for a relatively frequent presence of shadowy, obscurely translucent windows. Shoulders, margins and island opaque grey or bluish, pinkish, or brownish grey or greyish brown, often slightly more intensely coloured around the margins, Channels various shades of obscurely transluscent slate-grey, dark bluish or greenish grey or greyish or brownish green. Lines dull dark red. Dusky dots dull dark greyish green.