l8 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



S. lancerotiense from the Canaries, S. formosanum from Formosa. 

 S. proponticutn from Asia Minor has several times died in the open 

 with mc, and M. Cokrevon reports that it is not hardy at Geneva. 



To sum up, none of the Mexican Scdums 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-shoDts of the latter group, if pulled off with a " heel " when 

 half-grown, will often strike likewise. 



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. brevifolium, 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. viviparum notably, and also 

 its ally, S. verticillatum — produce in the upper part of their annual 

 stems numerous small leafy buds which, when the stems fall, root 

 readily and form new plants. Similar short shoots are produced on 

 the flowering stems of the N. American S. Douglasii. 



