CRASSULACE^. 221 



at the base only, and bearing a long raceme of pendulous, yellowish-green 

 flowers. Calyx very small. Corolla cyhntlrical, about 3 hnes long, be- 

 coming afterwards somewhat enlarged, with 5 short teeth, and enclosing 

 the stamens and carpels. 



On rocks, walls, and old buildings, in western Europe, extending eastward 

 round the greater part of the Mediterranean, southwards to the Canary 

 Islands, and northwards to Ii-eland, western England, and the south-west 

 corner of Scotland." It occiu-s more sparingly along the south coast of Eng- 

 land, and occasionally in some of the eastern counties. Fl. summer. 



III. SEDUIVI. SEDUM. 



Succulent herbs, sometimes woody at the base, with scattered leaves, occa- 

 sionally opposite or wliorled, especially at the base, or on barren stems ; and 

 yeUow, white, reddish or blue flowers, in terminal cymes or corymbs. 

 Sepals 4 to 6 (usually 5). Petals as many, distinct. Stamens twice as 

 many. Carpels as many as the petals, each" with an entire or emarginate 

 scale at the base, and containing several seeds. 



A widely diffused genus, numerous in species, especially in central and 

 southern Europe and central Asia, but extending also into North America, 

 and the mountains of South America. A large number of the smaller, 

 tliick-leaved species are found on dry rocks or stony places, whence the 

 popular name of Stonecrop apphed to several of them. 



Leaves flat, broad. -d ^ cj 



Flowers diceeious, with 4 sepals and petals \. Koserootjt. 



Flowers hermaphrodite, in large coiymbs, with 5 sepals and petals 2. Orpine S. 

 Leaves as thick, or nearly as thick, as broad. 

 Flowers white or reddish. 



Leaves shortly ovoid or globular. 



Whole plant quite glabrous 3. Eiighsh S. 



Calyx and pedicels with a few short, glandular hairs ... 4. Thick-leaved S. 

 Leaves oblong or cylindrical. 



Glabrous perennial, with numerous short barren branches, 



and erect flowering stems 5- White S. 



Viscidly downy, erect annual, without barren branches . . 6. Utiiry S. 

 Flou-ers yellow. 



Flowering stems 1 to 3 inches high. Cymes of two or three short 

 branches. 



Leaves ovoid or globular '■ Jiitmg e>. 



Leaves cylindrical or oblong -.8. Tasteless S. 



Flowering stems at least 6 inches high. Cymes two or three 



times divided • 9' Sock S. 



The S. Sieholdi, from Japan, and some other exotic species, arc to be met 

 with in our gardens. 



1. Roseroot Sedum. Sedum Rhodiola, DC. 



(Ehodiola rosea, Eng. Bot. t. 508. Roseroot. Midsummer- men.) 

 Stock short, thick, and almost woody ; the annual stems erect, stout, simple, 

 6 inches to nearly a foot high, and leafy to the top. Leaves alternate, 

 sessile, obovate or oblong, slightly toothed, from 6 hues to an inch long, 

 the lower ones often reduced to brown scales. Elowers dioecious, yellow 

 or rarely j)ui-pUsh, forming rather dense cymes, surrounded by the upper 

 leaves, which often assume a yellow or purple tinge; the males with 8 

 stamens, rather longer than the petals and sepals ; the females with 4 car- 

 pels, ending in short, spreading styles. 



u 2 



