CRASSULACK.f. 



176 



and sometimes glaucous leaves ; flowers often 6-merous, bright or 

 pale yellow. — Walls and dry banks ; not uncommon, but seldom, 

 if ever, indigenous.— Fl. July, August. Perennial. 



10. S. rnphire (Rock Stonecrop), an allied species, with 

 densely imbricated, adpressed, glaucous' leaves, slighdy flattened, 

 M-\i^ flowers in corymbose cymes, occurs; wild on limestone at St. 

 Vincent's Rocks, Piristol ; Cheddar ; and the Great Orrae's Head ; 



and elsewhere generally as an escape. — V. 



June, July. Perennial. 

 1 1 . .S'. Fo!-sierianui?i 

 (\Velsh Stonecroij), a 

 species very closely 

 allied to the preceding, 

 but with bright green, 

 not glaucous leaves 

 and fio-LL'ers in round- 

 topped or ca|)itate 

 cymes, grows on wet 

 rocks in \\'ales, Shrop- 

 shire, and Somerset. — 

 Fl. June, July. I'eren- 

 nial. 



I *4. SEMPEr^\'lVUM 



\ ^^ J I J (House-leek). - Suc- 



culent plants with 

 dense rosettes of ses- 

 sile radical leaves, giv- 

 ing off offsets from 

 their axils ; Jlmcers in 

 branched cymes, 6 — 

 20-merous ; stamens in 

 2 whorls, the inner 

 usually barren ; Jiype- 

 i^ynous seales fringed ; 

 foliieles manv-seeded. 

 (Name frcjm the Patin semper, always, vivo, I live.) 



1.* .V. teetorinn (Common House-Jcek).— A common but 

 scarcely indigenous plant, growing on the roofs of cottages and 

 outhouses. Phe leaves are thick and juijc)', edged with red-purple, 

 ciliate, mucronate, and in compact rosetfes. The dull red-purple 

 /^tizt'trj are in scorpioid cymes, and are usually 12-merous. The 

 inner whf)rl of staine/is frequently have anthers i-ontaiiiing ovii/es, 

 like thiise in the carjicP, which, however, never mature as seeds. 

 'A'hu leaves contain malic acid — Fl, June, July. Perennial. 



SE!VIPFR\'i\' 



I'M (Oj/ 



I H,nis,:-lrik). 



