232 



SEDUM SEMPERVIVUM. 



apex; 3 to 5 in. high. Flowers, in 

 summer; yellow, larger than in any 

 other British species ; petals twice as 

 long as broad ; sepals short, ovate. 

 Leaves, glaucous, narrow, cylindrical, 

 with a short point, closely imbricated 

 before flowering in 5 or 6 rows. There 

 are several varieties or subspecies ; 

 notably the British S. elegans, and the 

 green-leaved S. Forsterianum. Britain 

 and other parts of Europe. Bor- 

 ders, and the rougher parts of the 

 rock-garden or banks, in any soil. 

 Division. 



Sedum sexangulare (Six- angled S.} 

 Allied to the Common Stonecrop, and 

 by some considered a mere variety of 

 it ; 3 to 6 in. high. Flowers, in early 

 summer, usually rather later than 

 S. acre ; yellow, in a trifid cyme ; 

 petals lance-shaped, taper - pointed. 

 Leaves, sub-cylindrical, longer, more 

 numerous, and usually much redder 

 than those of S. acre, 3 in a whorl, 

 on barren branches, imbricated in 6 

 spiral rows, those on the flowering- 

 stems usually in threes ; stems branch- 

 ing at the base, flowering stems erect. 

 Europe and Britain, in dry sandy soil, 



and on walls. Borders, rough rock- 



work, or bare banks, in any soil. 

 Division. 



Sedum Sieboldi (Siebold's Stonecrop). 

 A prostrate and elegant plant with 

 stems 6 to 8 in. long. Flowers, inautumn; 

 small, rose-coloured, sometimes slightly 

 tinged with purple, in a dense roundish 

 cyme. Leaves, in whorls of 3, nearly 

 round, coarsely toothed, very glau- 

 cous, almost grey, slightly tinged with 

 rose, especially in autumn. There is 



a variegated variety. Japan. The 



rock-garden, edges of raised borders 

 or beds, vases, and in pots, in good 

 sandy loam. Division and cuttings. 



Sedum speetabile (Noble Stonecrop). 

 Remarkable for its full handsome 

 habit and showy bloom, 1 ft. to 16 in. 

 high. Flowers, late in summer and in 



autumn ; rosy flesh-colour or purplish- 

 carmine, very numerous, and forming 

 a large, regular, spreading cyme often 

 more than 6 in. across. Leaves, oval, 

 pointed, opposite, large, fleshy, smooth, 

 very glaucescent or greyish - green. 



Japan. Borders, beds and groups 



of the finer autumn -flowering peren- 

 nials, isolated specimens in the plea- 

 sure-ground, and naturalization in 

 any soil. Division. 



Sedum spurium (Showy Sedum). A 

 showy species, 4 to 8 in. high. Flowers, 

 in summer; pale purplish-rose, some- 

 times rosy flesh-colour, numerous, in 

 a compound corymb; petals lance- 

 shaped, acute. Leaves, alternate or 

 opposite, oboval or roundish, une- 

 qually toothed, slightly hairy and pale 

 underneath. There is a variety which 

 differs only in having flowers of a 



deep carmine hue. Caucasus. 



Borders, edgings, and the rougher 

 parts of the rock-garden, in any soil. 

 Division. 



Sempervivum arachnoideum (Cobweb 

 Houseleek). A small and singular spe- 

 cies of Houseleek, the tiny globose 

 rosettes of which are covered at the top 

 with a thick white down, like a close 

 spider's web. Flowers, in summer ; 

 pretty, purple or rose-coloured, on 

 stems 3 to 5 in. high ; petals 8 or 9, 

 spreading ; scales bluntly notched. 

 Leaves, lanceolate, acute, with glandu- 

 lar hairs on both sides. Alps and 



Pyrenees. The rock - garden, in 



sandy soil, and in chinks of old walls, 

 ruins, etc. Division. 



Sempervivum arenarium (Sand House- 

 leek}. A small kind, remarkable for 

 the great number of stolons which it 

 sends out from the axils of the leaves, 

 bearing young rosettes, which, after a 

 little time, detach themselves, and fall 

 on the ground where they readily take 

 root ; 2 or 3 in. high. Flowers, in sum- 

 mer ; light yellow, almost bell-shaped. 

 Leaves, in medium. - sized rosettes, 



