122 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



late summer from near the base of the flowering stems, remaining short and leafy 

 throughout the winter, shooting up, flowering and dying in the following season ; 

 ascending, 6-9 inches long, round, unbranched at first, but producing axillary 

 flowering branches when the main stem has flowered. Leaves alternate or 

 opposite, sessile, ij to 2 inches long, obovate to spathulate, toothed in upper 

 third, entire and tapering in lower two-thirds, dark green, shining, margin 

 minutely papillose. Inflorescence of lax terminal umbellate cymes, bracts small, 

 lanceolate, entire. Buds ovoid, acute, with orange ribs. Flowers orange-yellow, 

 J inch across. Sepals green, broad below, narrowed half way up to a linear blunt 

 end. Petals orange-yellow, lanceolate, apiculate, keeled, twice the sepals or 

 rather more. Stamens nearly as long as the petals, filaments yellow, anthers 

 orange. Scales whitish, broader than long. Carpels yellow, slightly exceeding 

 the stamens, erect in flower, wide-spreading in fruit, changing as the flower fades 

 through orange and crimson to brown. 



Flowers June to September. Hardy. 



Habitat. — North-eastern Asia, as far south as Corea and Central 

 China. 



Common in cultivation, and generally correctly named. Much 

 more constant in character than most of the section, and little excuse 

 exists for its sale under such names as Brownii, Braunii, Lehmanni, 

 Uvidum, Maximowiczii, pallidum, and porlulacoides. Its name kam- 

 tschaiicum commemorates the region from which it was first described. 



f. variegatum. 



With a broad irregular marginal band of white on the leaves. A 

 handsome rock-garden plant, the variegated foliage combined with 

 the orange flowers producing a showy effect. 



41. Sedum floriferum Praeger (figs. $^d, 63, 64). 



S. floriferum Praeger in Journ. of Bot., 56, 149, 1918. 



Allied to S. kamtschaiicum and 5. hybridum, and in many respects 

 intermediate. It shows close affinity to the latter in its sepals, which 

 are linear or oblanceolate, not wide at the base as in most of the 

 section, and in the size and appearance of its flowers ; its leaves also 

 are nearest to those of hybridum. But instead of being evergreen with 

 perennial creeping stems as in that species, it has the growth-form 

 of kamtschaiicum, the stems arising in autumn, remaining short during 

 the winter (fig. 63, a), and flowering and dying in the following 

 season ; the carpels also are those of kamtschaiicum, though 

 one-third smaller, as in hybridum. From both hybridum and 

 kamtschaiicum it differs in the tendency of its stems to produce many 

 short axillary floriferous branches, which give the plant a bushy and 

 very distinct appearance. 



Description. — A glabrous sub-evergreen perennial. Rootstock woody, 

 knotted, roots thickened. Stems many, annual, arising in autumn, ascending 

 or decumbent, red, somewhat scabrid, about 6 inches long, leafy, branched in 

 upper half or two-thirds, branches axillary, leafy, short, wide-spreading, often 

 numerous, bearing C3anes similar to the terminal one. Leaves sessile, spathujate- 

 oblanceolate, dark green, up to i J inch long by f broad, tapered and entire below, 

 toothed in upper third, crowded, blunt ; those of the branches similar but much 

 smaller. Inflorescence of terminal and lateral flattish, rather dense cymes 

 1-2 inches across, each usually of three forked branches with flowers in the 



