33° ALPINE FLOWERS. Part II. 



airy shelf of a cool greenhouse, the higher degree of warmth 

 causing the plant to attain a fuller habit than it does out of 

 doors in England. A very interesting subject for naturalisation 

 on old ruins and walls, and nothing can,be more pleasing than 

 healthy tufts of it, though it is to its leaves rather than its flowers 

 that it owes its attractiveness. S.farinosum resembles this in 

 appearance, but so far as my exjjerience goes, it is tender. 



SEDUM ■DhSnvs.Y.TJL.TSTsli..— Thick-leaved S. 



A SINGULARLY pretty species, of a pleasing glaucous colour; 

 indeed, not unfrequently the plant is of an amethystine blue tone. 

 The leaves are usually perfectly smooth, very thick, and fat — in 

 fact, quite swollen at the back — and very densely packed. The 

 flowers are not ornamental, being of a dull white, tinged with 

 rose, but the peculiarly neat habit and attractive hue of the plant, 

 when not in flower, will always make it a favourite in collections 

 of dwarf plants. It occurs abundantly on rocks, old walls, 

 and humid stony places, in Southern and South-western Europe, 

 and is found in some places in the South of England. Although 

 hardy on walls and rocks, it has not the vigour and constitution 

 of many of the other Stonecrops, and it is desirable to establish 

 it on an old wall or dry stony part of rockwork, so as to secure 

 a stock in case the plant perishes in winter on low ground, as I 

 have seen it do occasionally. It is very suitable for association 

 with such plants as the Cobweb Houseleek, and is an interesting 

 subject for naturalisation on old ruins. 



SEDUM TiWERBIl.—Swers's S. 



An exceedingly . neat, distinct, and diminutive species, with 

 smooth, opposite, glaucous, and broad leaves, and purplish 

 flowers in terminal corymbs, the whole plant being of a pleasing 

 silvery tone and rather delicate appearance, but quite hardy, 

 easily increased by division, and flowering in summer. A native 

 of the Altai Mountains; merits a place on every rockwork 

 and in collections of the dwarfest hardy succulent plants, rarely 

 rising above two or three inches high. 



SEDTTM GtI^TJCVM:.— Glaucous S. 

 A MINUTE species of a greyish tone, forming dense spreading 

 tufts of short stems, densely clothed with fat leaves, and rather 



