312 



MY GARDEN-. 



useful for the edging of flower-beds. .S. aracJinoideum (fig. 664) is 

 particularly interesting from its having a web over its leaves ; it grows 

 freely, and stands the coldest winters, although it is reputed to be 

 tender. I found on the St. Gothard Pass a species covered with a web 

 similar to this species, but none of the plants which I brought over 

 lived. I grow also vS. anomalum, S. arenarium, S. globiferum, S. 

 Jtirtinn, S. Pittoni, S. sobolifertim, S. Wulfenii, and many other 

 species. 



IG. 663. S. californicum. 



Vic,. 664. S- nrachnoideivm. 



vS. spinositm (fig. 665) is a very distinct and rare species. I procured 

 my specimen from Ware of Tottenham, a great cultivator of alpine 

 plants, but I do not yet know whether it is hardy. 



Amongst kinds which require protection in winter may be mentioned 

 vS. tabulceforme (fig. 666), a most remarkable plant, which has a flat, 

 table-like aggregation of leaves. When it flowers, a stem about nine 

 inches long is thrown up, and the flat table is destroyed. Other delicate 



FIG. 666. S. tabulaefonne. 



Fiq. 667. -S. Bollii. 



species are 6". arbor cum, S. ciliare, and S. repens. S. Bollii (fig. 667) 

 is remarkably fine, and is one of the most beautiful of all the species. 

 The whole plant assumes the form of a cup, and every leaf is 



