Lithops pseudotruncatella ssp. archerae

Description: Lithops pseudotruncatella was one of first plant of this genus discovered and for a long time one of the first representative in European collections. Generally this Lithops is characterized by greyish colour with darker ramosely branched marbling on the upper surfaces, but it is also a very variable taxon in which a number of variety and forms has been described. The status of these is uncertain.
Habit: It is a very free- growing species, solitary or forming clumps of 2 or more heads each consisting of a pair of succulent leaves.
Body (paired leaves): The body is medium to very large, solitary or variously branched with more of 20 heads. Facial diameters 25-50 X 20-35 mm and up to 4 cm tall. Top of lobe flat or slightly convex; sides grey with a tinge of purple; top of lobe varying from pale grey to brownish-grey with a slight pinkish tinge sometimes; windows numerous, consisting of round green dots (miniature windows); top of lobe divided into many irregular areas by branching lines or dendritic markings, which are more or less confluent, forming grooves, coloured rust-brown, brownish-red with a touch of purple-blue along the edges of the grooves; top of lobes slightly rugulose (uneven); in areas a very large number of very minute white dots. The miniature windows either small, round to irregular shaped, or windows confluent from larger windows, which now and then occupy the whole upper surface and in that case the miniature windows on the margin.
Flowers: Yellow (occasionally white), medium to very large, up to 50 mm in diameter.
Fruits: Seed capsules mostly 6-chambered.
Seeds: Light brown to brown.
Chromosome number: 2n = 18

• Lithops pseudotruncatella subs. archerae (de Boer) D.T.Cole: Cole numbers:C104, C306 This subspecies is easily recognized for its truncate profile and round-elliptic face, the uniform milky grey-green colour is also very characteristic of this plant.

Lithops pseudotruncatella (llifle.com)