Sedum. ] XXX. CRASSULACEA. 161 
and the flowering summits move or less viscid, with short, glandulaf 
hairs ; the leaves thicker, and more frequently opposite; the cymes or 
flowers more compact, of a dead white tinged with rose-colour; and 
the petals broader and not so pointed. 
Much more widely spread on rocks and walls, in western, central, and 
southern Europe, than S. anglicum, but does not extend eastward to the 
Russian territory, nor northward into northern Germany.- In Britain, 
only found on old walls, &c., in southern England, and in Cork county, 
Ireland, where it is not really indigenous. J. summer. 
5. S. album, Linn. (fig. 865). White S.—Stock creeping and pro- 
cumbent, bearing in winter short barren stems with crowded leaves, and 
in summer erect flowering branches, from 4 to 6 inches high, and 
perfectly glabrous. Leaves scattered, oblong or cylindrical, 3 to 6 
lines long. Flowers of a pure white or slightly pink, rather small 
and numerous, in elegant terminal cymes or corymbs. Sepals short 
oval, and obtuse. Petals nearly three times as long, oblong and 
obtuse. 
On old walls, rocks, cottage roofs, &c., over the greater part of 
Kurope and Russian Asia, except the extreme north. In Britain 
perhaps truly indigenous in the Malvern Hills and in Somersetshire ; 
and Mr. Carrol reports that a variety with short thick leaves is found 
on the south coast of Ireland, near Cork; in other places where the 
species has been observed, it had probably been introduced from 
gardens. Fl. summer. 
6. S. villosum, Linn. (fig. 366). Hairy S.—An annual, with erect, 
nearly simple stems, 3 to 4 inches high; the upper part of the plant 
always more or less covered with short, viscid hairs, like S. dasy- 
phyllum. Leaves more than twice, often 4 or 5 times, as long as thick, 
alternate or scattered. Flowers few, of a pale, rather dingy rose- 
colour, in a small, rather loose, terminal cyme. Sepals ovate and green. 
Petals ovate, about twice as long as the calyx. 
In bogs and along stony rills, in the mountains of western, central, 
and northern Europe, frequent in northern Hngland and the Scotch 
Highlands, but not recorded from Ireland. Fl. swmmer. 
7. S. acre, Linn. (fig. 367). Wall-Pepper.—Tufts perennial and pro- 
cumbent, consisting of numerous short barren stems, and erect or 
ascending flowering branches, from 1 to 2 or 3 inches hich ; the whole 
plant quite glabrous, assuming a yellowish tinge, and biting to the 
taste when chewed. Leaves small, thick, ovoid, or sometimes nearly 
globular, those of the barren shoots usually closely imbricated in six 
rows. Flowers of a bright yellow, in small terminal cymes. Sepals 
very short. Petals much longer, narrow-oblong and pointed. 
On walls and rocks, in stony and sandy places, throughout Kurope 
and Russian Asia, from the Mediterranean to ‘the Arctic regions. 
Abundant in Britain. Fl. summer. 
8. S. sexangulare, Linn. (fig. 368). Tasteless S.—Very near S. acre, 
and by some considered as a mere variety, differing only by the more 
slender leaves, several times longer than thick, and by the flavour said 
to be less acrid. 
A rather scarce plant, scattered over central and eastern Europe. 
Indicated in some parts of England, especially on old walls, in some of 
the eastern counties, but it is not indigenous. FV. summer. 
L 
