334 GARDEN FLOWERS. 



and half-hardy herbaceous perennials. Soil, sphagnum moss 

 and fibry peat. S. purpurea is perfectly hardy, needing only 

 a moist situation : the other species need greenhouse pro- 

 tection. Increased by division. 



S. Drummondii, S. flava, S. minor, S. purpurea, S. rubra, 

 S. variolaris, are all interesting plants, remarkable for the 

 pitcher-like form of the leaves. ' 



SAUSSUREA. [Composite] Hardy herbaceous perennials, 

 with red or purple flowers, thriving in common garden soil, 

 and propagated by division. There are about twenty spe- 

 cies, natives of Siberia and the Caucasus. 



SAXIFRAGA. Saxifrage. [Saxifragaceae.] Hardy peren- 

 nials, of close-tufted growth, mostly of small stature, and of 

 simple beauty. All the species are admirably suited for 

 rock-work, thriving when planted on raised banks among 

 rough stones, which they soon cover with their matted 

 branches. One species, -S". umbrosa, is one of the most val- 

 uable of plants for town gardens : in fact, it thrives any- 

 where, as well in the midst of smoke and shade as in the 

 pure air. This grows a foot or more high, and has pink flow- 

 ers prettily spotted, which are produced about May. The 

 species flourish in any kind of light soil, and increase to any 

 extent by division. They are sometimes planted as an edg- 

 ing to flower borders, and look very pretty, but require to be 

 frequently replanted. 



S. Cotyledon (pyramidal) ; hardy perennial ; 2 feet ; flowers 

 white, in a pyramid, in June ; European Alps ; 1 596. S. crassi- 

 folia (thick-leaved) ; hardy perennial ; I foot ; flowers pink, in 

 April; Siberia; 1765. S. granulata plena (grain-rooted) ; har- 

 dy perennial ; I foot ; flowers white, in May ; gardens. S. hyp- 

 noides (moss-like) ; hardy perennial ; 6 inches ; flowers white, 

 in May ; Scotland. S. oppositifolia (opposite-leaved) ; hardy 

 perennial ; 3 inches ; flowers purple or white, in March ; Bri- 

 tain. 6*. sarmentosa (sarmentose) ; half-hardy perennial ; 2 



