ACCOUNT OF GENUS SEDUM AS FOUND IN CULTIVATION. 165 



Description. — A small, creeping, light-green evergreen perennial, forming 

 a loose mat an inch high when not in flower. Roots fibrous. Stems slender, 

 the barren shoots short (1-3 inches), glabrous, diffuse, leafy, the apex bearing 

 a loose rosette of rather larger leaves, and tending to root, and producing in turn 

 similar short axillary spreading branches below and a terminal flower-stem 

 above. Flower-stem erect or inclined, slender, 3-4 inches long, sparingly leafy, 

 glandular-hairy. Leaves alternate, those of the rosettes glabrous, fleshy, quite 

 flat on face with a faint median groove, flattish on back, semicircular at apex, 

 cuneate or attenuate-cuneate below, sessile, shining, f to i inch long, J to f inch 

 broad ; those of the barren shoots below the rosettes glabrous, similar in outline, 

 smaller and often much thickened, some even sub-terete in section (see figure) ; 

 those of the flower-stems similar to the last, but glandular-hairy, more distant, 

 and diminishing upwards into minute bracts. Inflorescence a very lax, glandular, 

 hairy panicle of about 6-12 flowers on long pedicels (J to i inch) which are 

 decurved before flowering ; bracts few, minute. Buds broadly ovate, very 

 blunt, -5^ inch long. Flowers white, f inch or a little more in diameter. Sepals 

 very fleshy, flat and smooth on face, glandular-hairy and much curved longi- 

 tudinally and transversely on back, ovate-oblong, rather acute, less than \ inch 

 long, free almost to the base, green dotted red. Petals oblong-ovate or oblong- 

 obovate, semi-erect and rather broad at base, patent in upper two-thirds, blunt, 

 with a minute well-marked apiculus behind the apex, J inch long, \ inch broad, 

 hairy along the midrib on the back. Stamens spreading, white, filaments taper- 

 ing, a little shorter than the petals. Scales whitish, twice as long as broad, 

 truncate and retuse at apex. Carpels erect, oblong, yellowish-white, narrowing 

 abruptly into short erect styles. 



Flowers April-May. 



Habitat. — Himalayas. 



This well-marked little species was sent to me with other Sedums 

 from his garden by Mr. Murray Hornibrook, of Abbeyleix, Queen's 

 County. He could supply no definite history, and as its presumed 

 home was British Columbia I failed toudentify it and described it as 

 new {loc. cit., p. 163). 



Its name adenotrichum signifies gland-haired. 



69. Sedum Chaneti L6veille (figs. 90, 91 upper part). 



5. Chaneti Leveill6 in Fedde, " Repertorixmi, " 5, 99, 1908. 



Synonym. — S. pyramidale Praeger in Journ. of Bot. 54, 42,^1917. 



A remarkable species, very different from any other in cultivation. 

 In the barren stage it may be known by its loose rosette of glaucous, 

 very fleshy, linear, spine-tipped leaves about an inch in length ; when 

 in flower, its dense pyramid of bloom is quite distinctive. The stalked 

 carpels of its white flowers are also unusual. 



Description.— a glaucous perennial, very fleshy and brittle. Barren stems 

 very short, emitting short horizontal axillary branches, sparingly leafy, which 

 produce small leafy rosettes and roots at their extremities. Flower-stem's thick 

 erect, tapering, leafy, 6-12 inches high, with very many short-branched axillary 

 branches throughout. Leaves of barren stems forming loose rosettes, usually 

 Imear, straight, entire, sessile, glaucous, slightly rounded on face, much' rounded 

 on back, i inch long, ^ inch wide, ^V inch thick, very blunt, tipped with a delicate 

 spine -jL inch long, often with a smaller spine beside it (fig. 91, a, d. e, f) ; at 

 certam stages (? normally in winter or in dry periods) forming small,' dense, imbri- 

 cate sub-globular spiny rosettes, recalling the winter rosettes of Cotyledons pinosa 

 L., which develop at first into flat, fleshy, cuneate-spathulate spine-tipped leaves 

 the edges of which in the superior portion of the leaf are quite thin (see fig. 91 [ 

 b, c. d) ; later into linear sub-terete leaves as above ; lower leaves of the flowering 

 stems resembling the linear leaves of the barren stems, merging into oblong 



