112 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



leaf, deep orange in flower, and red in fruit, the highly pigmented con- 

 dition being known in gardens as var. aurantiacum ; it forms a hand- 

 some plant, and for cultural purposes deserves its distinguishing name. 



Var. scahrum Maximowicz is scabro-papillose throughout, and 

 common in some parts of China ; but I have not observed any tendency 

 in this direction among the cultivated forms. 



Aizoon is the name of a genus of Portulaceae. The word signifies 

 " always alive," and its application to a species of Sedum is obvious. 



Hybrid S. Aizoon X kamtschatlcum hybr. nov. (fig. 57). 



Description. — Rootstock twiggy' like kamtschaticutn, rather than woody like 

 Aizoon. New shoots arising in autumn from points near the base of the old 

 stems and remaining short and leafy during the winter, as in kamtschaticutn, not 

 arising in spring from points on the woody rootstock as in Aizoon. Stems de- 

 cumbent or ascending at base, remainder erect, resembling katntschalicum below 

 and Aizoon above, 6-8 inches long. Leaves lanceolate, serrate, in shape and 

 colour identical with some Aizoon forms, not oblanceolate as in kamtschaiicum, 

 less toothed than typical Aizoon. Inflorescence rather lax, very leafy, of three 

 dichotomous branches with flowers in the forks, resembling kamtschaiicum 

 rather than Aizoon. Flowers rich orange-yellow, J-f inch across, rather larger 

 and brighter than typical Aizoon ; in relative length of sepal to petal agreeing 

 with kamtschaiicum, not with Aizoon. Flowers in June, along with kamtschaiicum, 

 a fortnight before Aizoon. Fruit aborted, seeds sterile. 



Hybrids are so rare in the genus Sedum that this plant is of some 

 interest. 5. Aizoon is a very variable species, but the exactly inter- 

 mediate character of the present plant as between the two suggested 

 parents, and the infertile seeds, render its hybrid origin almost certain, 

 since S. Aizoon does not vary perceptibly in the direction of kam- 

 ischaticum, and since both parents are normally very free in their 

 production of seed. 



Probably a natural hybrid of garden origin. Received from 

 Wisley (no. 45/15) as kamtschaticum, and a plant practically identical 

 was seen in the Cambridge Botanic Garden. 



37. Sedum Selskianum Kegel and Maack (fig. 58). 



5. Selskianum Kegel and Maack in "Tentamen Flor. Ussuriensis," 66, 

 1861. Maximowicz in Bulletin Acad. Petersbourg, 29, 145, 1883. 

 Masters in Gard. Chron., 1878, ii. 268. 



Illustrations. — Regel and Maack, loc. cit., tab. 6, fig. 9-11. Regel, 

 " Gartenfiora, " tab. 361. Trans. Russian Hort. Soc, 1862, tab. 87. 



Nearest to S. Aizoon, which it resembles in habit, but easily known 

 by its very hairy stems, hairy narrower leaves, and more numerous 

 smaller flowers. 



Description. — A hairy herbaceous perennial. Stems annual, arising in 

 autumn, erect, i-ii foot high, rather slender, round, purplish, shaggy with 

 spreading or deflexed white hairs half as long as the diameter of the stem ; barren 

 stems none. Leaves, alternate, flat, scarcely fleshy, sessile, bluntly pointed, 

 toothed in upper half, dark shining green, finely hairy on both faces, ciliate, 

 midrib hairy below, about 2 inches long, the lower lanceolate-oblong narrowed 

 at base, the upper linear-oblong rounded at base. Inflorescence a large, very 

 leafy dense umbellate cyme, 2-4 inches across, of about 5 twice-branched hairy 

 branches j uppermost bracts lanceolate, very small. Buds ovate, acute, with 



