NEW AND BEAUTIFUL ROCK PLANTS 123 



anum, yellow ; reflexum, yellow ; Sieboldii, pink, and its 

 variegated form ; spectabile, pink, a useful border plant ; 

 and rupestre monstrosum, the Cockscomb Stonecrop, 

 remarkable for its twisted foliage. 



SEMPERVIVUM (HOUSELEEK). Practically the same 

 remarks apply to this genus. Like the Stonecrops, the 

 Houseleeks thrive in hot, dry places. The habit is 

 singular and interesting. Arachnoideum is curiously 

 webbed, and hence its name of the Cobweb Houseleek ; 

 Laggeri is one of the best of its forms. Globiferus, yellow, 

 has green rosettes. Tabulaeforme and its variegated form 

 are flat ; they are not hardy, but are often used in carpet 

 bedding and for edgings. Others are arenarium, barbatum, 

 Boutignyanum, Funckii, glaucum, purpureum, Tectorum 

 and variety Reginae Amaliae, and tristae. 



SHORTIA. Charming little plants, of which galacifolia, 

 with white flowers in spring, and uniflora, with rose 

 flowers in spring, are grown ; the latter has a large form 

 called grandiflora ; it is somewhat of a rarity which is 

 worth the attention of flower-lovers. The Shortias like 

 peat and loam. Propagation by offsets after flowering. 



SCHIZOCODON SOLDANELLIOIDES is a lovely little plant 

 allied to the Shortias, and responding to the same treat- 

 ment. It only grows two or three inches high, and the 

 pink flowers, which come in spring, are prettily fringed. A 

 mass of this charming rockery gem is a rare and lovely 

 sight. 



SILENE (CATCHFLY). Acaulis, pink, and its white 

 and double varieties, alba and plena ; alpestris, white ; 

 Saxifraga, white ; and Schafta, rose, are well-known 

 plants, low and dense in habit, and free-blooming. There 

 is one novelty in the genus, and that is laciniata Purpusii, 



