S. marmoreum from Okol, Albania

This is an extreme variant from the type! It was found in northern Albania and was diagnosed by dr. R.S. Wale in 1938 as S. marmoreum.

This plant has always been considered as a separate species, although it obviously has affinity to S. marmoreum.

The main distinction is that the leaves are much thicker than the typical form of S. marmoreum and are convex on leaf face instead of flat.

Rosettes are sub-globular, deep green with a pubescence on back of leaves even on matured rosettes and cilia of irregular lenght on margins included to a lesser extent on the back surfaces of leaves.