. An account of the genus Sedum as found in cultivation. Sedum; Crassulaceae. 244 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 115. Sedum humifusum Rose (fig. 141). 5. humifusum Rose in " Contrib. Nat. Herb.," 13,298, 1911. Illustration.—Loc. cit., pi. 55 (photo). A delightful tiny species forming a fresh green, moss-like mat, and easily recognized by its strongly ciliate leaves and solitary star- like yellow flowers. In appearance nearest to S. compactum, but this has white sub-globular flowers and smooth leaves. Description.—A minute evergreen mat-forming perennial. Marginal sh
. An account of the genus Sedum as found in cultivation. Sedum; Crassulaceae. 244 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 115. Sedum humifusum Rose (fig. 141). 5. humifusum Rose in " Contrib. Nat. Herb.," 13,298, 1911. Illustration.—Loc. cit., pi. 55 (photo). A delightful tiny species forming a fresh green, moss-like mat, and easily recognized by its strongly ciliate leaves and solitary star- like yellow flowers. In appearance nearest to S. compactum, but this has white sub-globular flowers and smooth leaves. Description.—A minute evergreen mat-forming perennial. Marginal shoots creeping, somewhat elongate (up to i inch), the others more or less erect and forming tiny rosettes like those of a Sempervivum, -j'g- inch across. The stems produce continually short axillary branches from about \ inch back from the growing point. Leaves closely imbricate, obovate, flattened, fleshy, strongly ciliate, with a little tuft of radiating hairs at the apex ; old leaves xl Fig. 141.—5. humifusum Rose. Flower stems reddish, J to | inch long, slender, with a few leaves. Flowers solitary, terminal, f inch across. Sepals green, ovate, very fleshy, ciliate, leaf-like, one- half the petals. Petals bright yellow, ovate, acute, spreading widely. Stamens yellow, spreading, equalling the carpels. Scales small, cuneate, orange-yellow. Carpels erect, yellow, equalling the stamens. Flowers April (gentle heat); June (cold frame). Not hardy. Habitat.—Queretaro, Mexico. Received from Washington, also from Upsala (whence it came from Darmstadt). I have seen it at Edinburgh and Dresden, and it was shown at the Royal Horticultural Society in July 1916. The name humifusum (= spread over the ground) well describes its habit. 116. Sedum cupressoides Hemsley (fig. 142). 5. cupressoides Hemsley, " Diagnoses Plant. Nov.," 1, 11, 1878. Hemsley, " Biol. Centr. Amer., Botany," 1, 393. " N. Amer. Flora," 22, 63. Illustration.—"Biol. Cen
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