igS JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
88. Sedum proponticum Aznavour (fig. 112). 
5. proponticum Aznavour in Bulletin Sac. Bot. de France, 44, 169, 1897. 
Synonym. — S. getnmiferum of some gardens. 
Illustration. — Rouy, " Illustr. Plant. Europ. Rar.," tab. 257. 
The present species differs from all others in cultivation in its short 
subterranean shoots clothed with very short, very thick, white tooth- 
like leaves ; these shoots in late autumn come to the surface, and pro- 
duce flat rosettes, from which the flowering stems arise in the following 
spring. The aerial portions of the plant are also sufficiently distinct. 
Description. — An evergreen perennial. Roots fibrous. Barren shoots 
arising from the base of old stems or from points on the roots, at first 
subterranean, 1-2 inches long, densely clothed with very short, imbricate, very 
thick, colourless leaves ; rising to the surface in autumn and producing a very flat 
winter rosette of obovate green leaves. Flowering shoots single, erect or eventually 
decumbent-ascending, arising in spring from the rosettes before-mentioned, 
about 6 inches high, round, unbranched, stout, nearly smooth below, rough with 
deflexed glands above. Leaves of flowering shoots opposite, flat, dark green, 
fleshy, the lower ones shortly stalked, obovate, tapered below, rounded at apex, 
entire, the upper ones smaller, sessile, sometimes alternate, broadly ovate or 
nearly orbicular, slightly and bluntly toothed. Inflorescence terminal, lax, of 
2 or 3 spreading, straight, simple, scabrid branches 1-2 inches long, with a flower 
in the fork ; occasionally a short branch is also produced from one of the highest 
leaf-axils. Bracts leaf-like, becoming very small. Flowers mostly sessile, the 
lowest shortly stalked, rosy purple, ^ to f inch across. Buds lanceolate, blunt, 
strongly ribbed. Sepals green, very fleshy, lanceolate, blunt. Petals twice 
the sepals, broadly lanceolate, acuminate, wide-spreading, grooved on face, 
strongly keeled on back, light rosy purple with a white base. Stamens 10, about 
f the petals, filaments white, anthers reddish. Scales very short, roundish, 
greenish or yellowish. Carpels erect, equalling the stamens, lanceolate, purple, 
with a line of papillae on either side, facing the adjoining carpel. 
Flowers July. Half hardy. 
Habitat. — Asia Minor, opposite Constantinople. 
Received from Kegel and Kesselring of Petrograd, in 1914, and 
from CoRREvON of Geneva, in 1916, both under the name 5. gemmiferum 
(a nomen nudum). A very curious plant, allied to 5. Listoniae Visiani, 
also from Asia Minor, which differs in its barren shoots not being 
subterranean, in its ciliate leaves, &c. ; the latter species is not in 
cultivation. 
5. proponticum is doubtfully hardy with us. I have lost it twice 
during the winter, and M. Correvon reports that he has had to 
protect it at Geneva. 
89. Sedum Stevenianum Rouy and Camus (fig. 113). 
S. Stevenianum Rouy and Camus, "Flore de France," 7, 94, 1901. 
Hamet in Trd. Bot. Sada (Tiflis), 8, part iii. 7. 
Synonym. — S. roseutn Steven in "Mem. Soc. Nat. Moscou," 3, 263, 1812 (not 
of Scopoli, for which see p. 28) ; Boissier, "Flora Orient.," 2, 780. 
In size and habit, in the leaves broadest near the tip, and in the 
cup-shaped flowers, this little plant resembles 5. alpestre ; but it is 
smaller, the leaves are dotted with red, the petals are broader and have 
a red keel, the sepals are smaller, the scales larger and conspicuous. 
