Lithops werneri Schwant. & Jacobs. (1951)



 

Origin:


Collected by Werner Triebner, son of Wilhelm Triebner of Windhoek, probably in 1950, and named for him.

Distribution:


Namibia, at only one known locality in the south of the Erongo Mountains (C188), to the north of Usakos (not to the SW as stated in the original description).
Stone: Weathered granitic gravel (fine to medium grain). Colours light brownish white, light brown.

Description:


One of the smallest of Lithops, usually with rather distinctive branched markings and facial shape, therefore fairly easily identifiable.
Profile cordate-truncate, usually somewhat convex; fissure relatively deep, 4-8 mm; lobes conjunct.
Face flush; mostly 'figure-eight' elliptic; lobes mostly ± unequal; mostly opaque; somewhat rugose.
Margins usually not clearly distinguishable, being interrupted by simple or branched intrusive lines extending out from the channels, which often form fairly large peninsulas; inner margins however, often manifest as a ± continuous channel or line of dusky dots.
Windows sometimes manifest as broad to narrow channels, but often not distinguishable at all, the face then completely opaque with a network of slightly impressed grooves.
Channels somewhat impressed, occasionally broadened into irregularly shaped rather obscure 'pools' up to about 4 mm wide, but usually narrower; often reduced to a network of slightly impressed grooves or furrows which barely accommodate the rubrications.
Islands occur only as irregular and slightly humped opaque areas ± enclosed by channels.
Rubrications set in the channels or grooves, usually an entire or broken network of slender branched lines, often broader at the junctions, which usually extend digitately onto the shoulders; occasionally reduced to a number of indistinct dashes and dots in the grooves.
Dusky dots usually numerous, scattered irregularly over the whole face, opaque and transluscent areas alike; often concentrated along the lines of the rubrications, when it becomes difficult to distinguish between channels and concentrations of dusky dots.
Colours: Face (margins & islands) opaque light grey or light greenish grey, sometimes pinkish or yellowish grey. Channels obscurely transluscent greenish grey or brown, orange-brown or greyish green. Rubrications dark reddish brown. Dusky dots dark dull grey-green. Shoulders usually as for the face, or a little paler.
Size: Very small to small, facial diameters up to 24 x 18 mm, mostly about 20 x 15 mm. Number of heads up to 10 or more, mostly 2-3.

Flowers:


Yellow, very small to medium, up to 28 mm Ø, mostly 15-20 mm Ø.
Seed capsules mostly 6-merous (62%) or 5-merous (32%), otherwise 7-merous (4%) or 4-merous (2%). Profile rotund, top flat to peaked. Face ± round, with hinge-rim, up to 7,5 x 7 mm, mostly about 5,7 x 5,5 mm.
Seeds yellow-brown; smooth to rugose 1, flecked.

| Back to the top |



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


Home | Morphology | History | Distribution | Cultivation | Species | Literature & Links | Contact Me