CEASSTJLACE.5!. 223 



5. ^Vhite Sedum. Sedum album, Linn. 

 (Eng. Bot. t. 1578.) 



Stock creeping and pvocnmbent, bearing in winter short baiTen stems 

 ■with crowded leaves, and in summer erect flowering branches, fi'om 4 to 6 

 inches liigh, and perfectly glabrous. Leaves scattered,, oblong or cylindri- 

 cal, 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 near three times as long, oblong and obtuse. 



On old walls, rocks, cottage- roofs, etc., over the greater part of Europe 

 and Russian Asia, except the extreme north. In Britain, perhaps triily 

 indigenous in the Malvern Hills and in Somersetshire ; in other places 

 where it has been observed, it had probably been introduced from gardens. 

 PI. summer. 



6. Hairy Sedum. Sedum villosum, Linn. 

 (Eng. Bot. t. 394.) 



An annual, with erect, neai-ly simple stems, 3 to 4 Laches higli ; the upper 

 part of the plant always more or less covered with short, viscid hairs, hke 

 tlie thick-leaved S. 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 rUls, in the mountains of western, central, and 

 northern Europe, fi-equent in northern England and the Scotch Highlands, 

 but not recorded from Ireland. Fl. summer. 



7. Bitmg Sedum. Sedum acre, Linn. 

 (Eng. Bot. t. 839. Wall-Pepper.) 



Tufts perennial and procumbent, consisting of numerous short barren 

 stems, and erect or ascending flowering branches, from 1 to 2 or 3 inches 

 high ; 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 Europe and 

 Russian Asia, from the Mediterranean to the Arctic regions. Abundant m 

 Britain. Fl. summer. 



8. Tasteless Sedum. Sedum sexangulare, Linn. 

 (Eng. Bot. t. 1946.) 

 Very near the hiting S., and by some considered as a mere variety, differ- 

 ing only by the more slender leaves, several times longer than thick, and by 

 the flavom' said to be less acrid. 



A rather scarce plant, scattered over central and eastern Europe. Indi- 

 cated in some parts of England, especially on old walls, in some of the 

 eastern counties, but with doubts as to its being indigenous. Fl. summer. 



9. Rock Sedum. Seduia rupestre, Linn. 

 (Eng. Bot. t. 170, and S. glaucum, Eng. Bot. t. 2477.) 

 Stock perennial and creeping, with numerous short barren shoots, 1 to 3 



