MARMOREUM ssp. ERYTHRAEUM (Velenovsky) Zonneveld, 1998
Synonyms :
Sempervivum montanum Velenovsky (1898)
Sempervivum cinerascens Pancic ex Adamovic (1909)
Sempervivum leucanthum Stojanov & Stefanoff (1924)
Sempervivum ballii hort. ex Praeger (1932)
Distribution : Bulgaria; alpine and subalpine rocks, 1000 - 2500 m.
Description (according to 't Hart, Bleij & Zonneveld in IHSP, 2003) :
Rosette open, flattish, 3 - 6 cm in diameter, stolons many, usually short.
Leaves velvety glandular-pubescent (Ha ± 0.05 mm), densely ciliate, usually rose-red, 1 – 4 cm.
Flowering branches 10 - 20 cm, with the leaves shortly pubescent.
Inflorescence purplish with white pubescence, more branched than in the other ssp., to 7 cm in diameter.
FIowers 11- to 14-merous, to ± 2.5 cm in diameter, petals carinate, strongly pubescent, keel red-striped,with white indistinct margin, ± 10 mm.
This ssp. comprises the velvety-pubescent forms with hairy pink to red flowers. It hybridizes in nature with S. ciliosum.
See also : Alan C. Smith, The Genus Sempervivum and Jovibarba, 1980
Photo Olivier Legros