Sedum.] CRASSULACE^E. 149 



8. S. reflex'um, L. ; glabrous, leaves crowded cylindric-subulate 



spreading and reflexed, flowers pedicelled, sepals not gibbous at the base. 



S. rupes'tre, L. (layman). 



On rocks and housetops in England, Wales, and Ireland ; fl. July-Aug. — 

 Very similar to S. rupes'tre, but usually much larger, the leaves are in about 

 6 series, and almost cylindric with subulate tips ; the flowers are usually 

 bracteate, often 6-merous. — Distrib. N. and Mid. Europe. 



S. reflex'um proper ; leaves green, those of the flowering shoots reflexed, 

 flowers bright yellow. The common garden form, not indigenous. — Vab. 

 S. albescens, Haw. (S. glau'cum, Sm.) ; smaller, leaves glaucous, those of 

 the flowering stems not reflexed, flowers pale yellow. Indigenous ; Milden- 

 hall, Suffolk ; Babbicombe, Devon, 



3 *. SEMPER VI' VUM, L. House-leek. 



Succulent herbs or undershrubs. Radical leaves densely rosulate, axils 

 stoloniferous ; cauline alternate. Flowers in corymbose or panicled cymes. 

 Calyx 6-multi-fid or -partite. Petals as manj^, distinct or connate and 

 adnate to the alternate filaments below, narrow, acute. Stamens usually 

 twice as many, the alternate sometimes deformed or transformed into 

 carpels. Scales simple, distinct or connate in pairs, 2-fi.d or fimbriate, 

 rarely 0. Carpels as many as petals, free or connate and adnate with the 

 calyx-tube ; styles filiform ; ovules many. Follicles many-seeded. — 

 — Distrib. Europe, N. Africa, especially Madeira and Canaries, W. Asia, 

 Himalaya ; species 40. — Etym. semper and vivo, from their retention of 

 vitality. 



S. tecto'rum, L. ; perennial, glandular-pubescent above, leaves ciliate. 

 Tops of walls and houses, not indigenous ; fl. June-July. — Flowerless shoots 

 2-4 in. diam., in globose tufts ; flowering-stems 1-2 ft., erect, stout, with 

 scattered leaves. Leaves 1-2 in., very fleshy, oblong or obovate-lanceolate, 

 mucronate, edged with purple, tips flat. Cyme 2-5 in. diam., branches 

 ecorpioid. Floioers f-1 in. diam., dull red-purple. Sepals 12, narrow, acute. 

 Petals lanceolate, ciliate. Stamens 12, with as many imperfect or trans- 

 formed into carpels. Scales minute. — Distrib. Europe, W. Asia. 



OEDEE XXIX. DEOSERA'CEffi. 



Perennial glandular herbs, rarely shrubby below. Leaves radical and 

 rosulate, or cauline and alternate, circinate in bud, stipulate. Inflorescence 

 various, often circinate cymes. Sepals 4-8, imbricate in bud, persistent. 

 Petals 4-8, hypogynous or perigynous, distinct or connate at the base, 

 imbricate, persistent. Stamens 4-20, inserted with the petals, rarely 

 adnate to them ; anthers versatile or basifixed, bursting outwards. Disk 

 0, or obscure. Ovary free, 1-5- celled ; styles 1-5, simple or divided, 

 stigmas simple or multifid ; ovules many, anatropous. Capsule 1-5-celled, 

 loculicidally 2-5-valved, many-seeded. Seeds small, albumen fleshy, testa 



