. An account of the genus Sedum as found in cultivation. Sedum; Crassulaceae. l8 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. S. lanceroUense from the Canaries, S. formosanum from Formosa. S. pyoponticum from Asia Minor has several times died in the open with me, and M. Correvon reports that it is not hardy at Geneva. To sum up, none of the Mexican Sedums are fully hardy throughout the British Isles (though some of them are nearly so). The same remark applies to the species of the Japonica series known in cultivation, and other Chinese species. The remaining tender Sedums found in cultivation a
. An account of the genus Sedum as found in cultivation. Sedum; Crassulaceae. l8 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. S. lanceroUense from the Canaries, S. formosanum from Formosa. S. pyoponticum from Asia Minor has several times died in the open with me, and M. Correvon reports that it is not hardy at Geneva. To sum up, none of the Mexican Sedums are fully hardy throughout the British Isles (though some of them are nearly so). The same remark applies to the species of the Japonica series known in cultivation, and other Chinese species. The remaining tender Sedums found in cultivation are few ; they come from various southern regions, and belong to various groups. Very little need be said as to propagation. The Sedums are notorious for the ease with which any scrap will take root and grow, and this applies throughout the whole genus. With the fleshy-rooted species, such as S. Telephium, root-cuttings will strike ; and similarly pieces of the fleshy caudices of the Rhodiolas will root at once ; the. Fig. 2.—Propagation of Sedum from leaves a. S. Stahlii; b. S. Adolphi (nat. size). flowering-shoots of the latter group, if pulled off with a " heel " when half-grown, will often strike Hkewise. Another and interesting means of propagation results from the capacity possessed by single leaves, when detached, of producing a bud and roots from their base (fig. 2), which speedily form a new plant. This power is found widely spread in the genus, and equally in terete- leaved and flat-leaved, large-leaved and small-leaved plants: for instance, in S. hrevifolium, Stahlii, album, reflexum, pachyphyllum, diversijolium, helium, nutans, praealtum, versadense, Treleasei, Tele- phium ; even some of the annual or biennial plants—for instance. S. indicum—can produce young plants from the leaves, and thus cease to be annuals or biennials. I have not observed this power of budding in any member of the Rhodiola or Aizoon sections. Some of the Telephium section—S. v
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