40 ALPINE FLOWERS. Part !• 



and also for association with flower-garden plants of the ordinary- 

 type. Another plant very much used is Echeveria secunda, and, 

 though this has remained out all the winter in various places, it 

 may practically be considered to require greenhouse Or frame 

 or pit treatment. The variety glauca, of a lighter and bluish 

 white tone, is more tender than E. secunda itself, and must 

 also receive greenhouse or frame treatment in winter. 



Of hardy succulents that are fit for flower-garden use, none are 

 more worthy of cultivation than the Sempervivums. Being hardy 

 and easily grown in any soil, they will eventually become plants 

 for everybody's garden. Our old friend the Houseleek is not used 

 yi this way, but there is no reason why it should not be, as few 

 of the kinds are so large. One of the most distinct of the 

 ;.Dtlier kinds in cultivation is called S. Heuffelli; it is somewhat 

 ■ of the same aspect as the Houseleek, but the leaves turn to a dull 

 crimson in summer and autumn. Of the remaining Houseleeks 

 the following are hardy and suitable for forming very dwarf 

 edgings and beds : — Sempervivum arenarium, ciliatu^n, cal- 

 cafeum, Fu7ikii,glaucum,globiferum, Laggeri, hirtum,juratuin, 

 Mettenianum, montanum, Neilrichii, pilifei^um, Pomelli, Re- 

 quiem, ruthenicum, soboliferum, stenopetalmn, velutinum, vil- 

 losum, and arachnoideum. 



Of Sedums the kind that has been most used is the dwarf 

 and pretty S. glaucum. Many other kinds will be found useful, 

 and among them the following are valuable ; — Sedum acre 

 variegatum, pulchellum, Ewersii, hispanicum, kamtschaticum, 

 rupestre, reflexum, sexangulare, sexfidum, Sieboldii, spurium, 

 teretifolium, ' iernaium, triangulare, villosum, virens, and 

 multiceps. 



Among the silvery or Aizoon section of the Saxifrages there 

 are ^ome charming little plants, with their silvery leaves so 

 leathery and thick that I may well include them among hardy 

 garden succulents ; and among them the best are Saxifraga 

 Aizoon, Cotyledon, pyramidalis, Rocheliana, crustata, rosularis, 

 Hostii, intacta, Ungulata, and the fine Pyrenean xS". longifolia. 

 There are of Saxifrages alone scores of kinds suitable for this 

 purpose, from the silvery ones of the longifolia section to the 

 deep glistening green kinds of the hypnoides section, and there 

 should be no difficulty whatever in making numerous little ar- 

 rangements like those suggested in Figs. 33, 34, and 35, with the 

 vegetation of each entirely different from that of its neighbour. , 



