88 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Flowers August-September. Hardy. 



Habitat. — Korea. 



For the opportunity of studying this plant I am indebted to the 

 Director of the Botanic Gardens at Upsala, who kindly sent his only 

 plant and allowed me to grow it for a couple of seasons. It was raised 

 from seed collected by Abb^ E. J. Taquet in Korea and distributed 

 by the Dendrologische Gesellschaft of Vienna. 



The plant varies as regards the size of its flowers, which are, how- 

 ever, always larger than those of any of its allies ; if grown in shade, 

 the purple pigment is not developed, the flowers being then wholly 

 green ; but the long slender curved carpels will always identify it, 

 fresh or dried. 



Seedlings which I raised from this plant were evidently crosses 

 with S. Telephium, as most of my maximum seedlings have been 

 (see p. 8), and were intermediate in characters of both leaf and flower. 

 A puzzling plant of unknown antecedents, received from Edinburgh 

 as S. alhoroseum, almost exactly matches these and appears to be 

 "of similar parentage, though where the Taqiietii blood came from in 

 that case is unknown. 



Named after its collector. 



26. Sedum alboroseum Baker (figs. 36^^!, 41). 



S. alboroseum Baker in Saunders' " Refug. Bot.," tab. 33, 1868. 

 Maximowicz in Bulletin Acad. Petersbourg, 29, 140, 1883. 



Synonyms. — S. erythrostictum Masters in Gard. Chron., 1878, ii. 337 (not of 

 Miquel in Ann. Mus. Bot. Lugd.-Bat., 2, 155, which appears to be a form of 

 5. Telephium — see Maximowicz, he. cit.). 



S. japonicum of gardens (not of Siebold, see p. 254). 



S. macrophyllum of gardens (a name also applied to S. maximum) . 



Illustrations. — Baker, loc. cit. Regel, " Gartenflora," tab. 709, figs. 4-5. 



Not infrequent in gardens, mostly under the names of japonicum 

 or macrophyllum, and reported by Baker as in cultivation for many 

 years before he described it in 1868. Leaves usually opposite, though 

 Baker says they are never so. The plant most resembles a large 

 pale Fabaria, but the whitish petals and rosy carpels distinguish 

 it. In bud the uppermost leaves (bracts) half enclose the inflorescence 

 in a characteristic way, while in the Telephium forms these are spread- 

 ing; indeed, all the leaves are more erect than in Telephium. Taller 

 and slenderer than the wholly pink-flowered 5. speciabile, of which the 

 leaves are broader, more crowded and more spreading and the inflor- 

 escence larger and flatter. A very late fiowerer (latter half of 

 September). The name alboroseum is taken from the white and red 

 flowers. 



Description. — A tall glaucous herbaceous perennial. Rootstoch thickened, 

 with carrot-like tuberous roots. Stems annual, 1-2 feet high, smooth, round, 

 unbranched, erect. Leaves rather distant, usually opposite (sometimes alternate 

 or temate), ascending, lower concave, upper smaller and very flat, ovate to 

 obovate-cuneate, narrowed into a short petiole, pale glaucous green, bluntly 

 toothed, 2-3 inches long by half as broad. Inflorescence dense, sparingly leafy, 

 of terminal and often lateral corymbs. Buds ovoid, rather blunt, remaining 



