Index:



L. hallii var. hallii
L. hallii var. ochracea
    acf 'Green Soapstone'



Lithops hallii H.W. de Boer (1957)


var. hallii



       
       

Origin:


Collected by Harry Hall in April 1956, and named for him.

Distribution:


RSA: CP, in a large triangular area with points S of Douglas, SE of Hopetown, and NE of Vanwyksvlei; with outliers to the SW and also well to the N of Upington. TL '30 miles S of Prieska... on a small white and arid flat limestone formation'.
Stone: Calcrete with some jaspilite; calcrete with some fine-grained dark sandstone; yellow-brown sandy shale, grey-brown silty fissile sandstone. Colours grey-white, grey, brown, with some red, black; yellow- or grey-brown.

Description:


Generally distinguished by its fairly distinct margins and fairly regular fine network of channels with mostly small islands; relatively uniform and fairly easy to identify.
Profile truncate, top surface mostly flat, sometimes slightly convex; fissure shallow, 4-7 mm; lobes conjunct.
Face flush; mostly somewhat reniform; lobes equal-unequal; opaque, occasionally very obscurely transluscent; slightly rugose.
Margins distinct, usually somewhat irregularly dentate.
Windows usually ± occluded, occasionally ± completely open.
Channels broad to narrow, often reduced to very narrow grooves, forming a relatively regular, usually fairly fine network.
Islands few to many, mostly fairly regular and small; usually distinct but sometimes reduced to flecks.
Rubrications seldom completely absent, usually consisting of scattered dots, dashes and hooks in the windows and channels, sometimes with longer lines forming a broken network, but often restricted mainly or entirely to the marginal indentations.
Dusky dots usually not visible at all, occasionally obscurely perceptible under a lens.
Colours: Margins and islands various shades of opaque grey or beige, faintly tinged with yellow, pink, blue or green, or yellowish, orange or reddish brown; the margins often with a slightly more intense band or suffusion of colour. Windows and channels various shades of opaque or very obscurely transluscent grey, or grey tinged with green, brown, blue, pink or yellow, usually contrasting with the grey colours of the margins and islands. Rubrications bright to dull blood-red, purplish brown, orange-brown or greenish brown. Shoulders as for the margins, or lighter, or milky bluish grey.
Size: Medium to very large, facial diameters up to 47 X 30 mm, mostly about 27 X 20 mm. Number of heads up to 6 or more, mostly 2-3.

Flowers:


White, medium to large, up to 45 mm Ø, mostly 25-35 mm Ø.
Seed capsules mostly 6-merous (65%), otherwise mainly 5-merous (28%), or 7-merous (7%). Profile rather shallow or boat-shaped, top flat to slightly convex. Face narrowly elliptic, up to 10 X 6,5 mm, mostly about 8,5 X 5,5 mm.
Seeds light yellow-brown to yellow-brown, smooth to rugose 1, flecked.

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Lithops hallii H.W. de Boer (1957)


var. ochracea



       

Origin:


Collected by A.A. Roux in 1957. Latin ochracea '(red) ochre-coloured'.

Distribution:


RSA: CP, in a large quadrangular area bounded by Kenhardt, a point 70 km NNW of Upington, Niekerkshoop, and Upington, Prieska. TL 'near Upington, on a low ridge, in quartz' (C059).
Stone: Grey-white, white and pink pegmatite; white, grey-white and pink quartzite; grey-white calcrete with some red, brown and black jaspilite; reddish-brown sheared quartz feldspar rock.

Description:


Distinguished from var. hallii by its opaque red-brown colour.
Profile truncate, top surface mostly flat, sometimes slightly convex; fissure shallow, 4-7 mm; lobes conjunct.
Face flush; mostly somewhat reniform; lobes equal-unequal; opaque; usually slightly rugose.
Margins distinct, fairly regular to somewhat dentate or slightly sinuate, sometimes with a few peninsulas.
Windows usually ± occluded, occasionally ± completely open.
Channels broad to narrow, fairly regular.
Islands few to many, mostly fairly regular and small; occasionally reduced to indistinct flecks.
Rubrications sometimes rather few and obscure, or restricted to the marginal indentations; usually consisting of scattered dots, dashes and hooks, occasionally with some longer lines forming a broken network.
Dusky dots not visible.
Colours: Margins and islands various shades of opaque milky pink, beige, or orange or pinkish grey, the marginal band sometimes slightly more intensely coloured. Windows and channels various shades of opaque greenish or bluish red or red-brown, reddish blue or orange-brown, or brownish grey, occasionally very obscurely transluscent. Rubrications bright to dull blood-red or orange-red.
Size: Medium, facial diameters up to 30 X 24 mm, mostly about 25 X 20 mm. Number of heads up to 6 or more, mostly 2-3.

Flowers:


White, medium to very large, up to 47 mm Ø, mostly 25-35 mm Ø.
Seed capsules mostly 5-merous (60%), otherwise mainly 6-merous (38%) and 7-merous (2%). Profile boat-shaped, top flat to slightly convex. Face elliptic, up to 11 X 7 mm, mostly about 8,5 X 6 mm.
Seeds light yellow-brown to yellow-brown, smooth, flecked.

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Lithops hallii H.W. de Boer (1957)


var. ochracea


acf 'Green Soapstone' (1985)



Origin:


Collected by Mrs M.E. Huysamen from whom we received the single specimen which she discovered in 1974; subsequently she found a second one.

Distribution:


Known from only one locality, C111.

Description:


Distinguished by its greenish-yellow colour, but in all other respects the same as the type.
Colours: Margins and islands opaque milky greenish-yellow. Windows and channels various shades of opaque dull greenish brown or greyish brown, sometimes very obscurely transluscent. Rubrications usually sparse and obscure, often not visible without a lens, reddish orange. Dusky dots not visible. Shoulders pale greyish green.

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* Information from COLE, DESMOND T. and NAUREEN A., (2005) Lithops Flowering Stones, Cactus&Co. Libri


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