GARDEN FLOWERS. 329 



agated by layers or cuttings. S. adiantifolia is the only spe- 

 cies, of which there is a fine variegated variety. 



SALIX. Willow. [Saliceae.] A large genus of decidu- 

 ous shrubs aud trees, a few of which are ornamental. Moist 

 soil, rather loamy. Propagated by cuttings of the stouter 

 shoots planted in spring. 



ORNAMENTAL TREES. S. Babylonica, and its varieties cris- 

 pa and Napoleona; S. cuprea pendula. 



There are some two hundred species and varieties. 



SALPIGLOSSIS. [Solanaceas.] Annuals or biennials, of a 

 showy character, requiring the protection of a frame or 

 greenhouse in winter ; and except in very sheltered situa- 

 tions, where they may be planted out in summer, suited 

 rather for pot-culture in doors than for the open air. They 

 may be managed very much in the same way as the biennial 

 species of Schizanthus. They require a light and rich com- 

 post. Probably they are all varieties of the same species. 

 When well cultivated, they are showy plants. 



S. atropurpurea (dark-purple) ; half-hardy biennial ; 2 feet ; 

 flowers dark-purple, in June; Chili; 1827. S. Barclayana 

 (Barclay's) ; half-hardy biennial ; 2 feet ; flowers brown and yel- 

 low, in June ; gardens. S. coccinea (scarlet) ; half-hardy bien- 

 nial ; 2 feet ; flowers scarlet or coppery, in June. S. lutea (yel- 

 low) ; half-hardy biennial ; 2 feet ; flowers yellow, in June. S. 

 picta (painted) ; half-hardy biennial ; 2 feet ; flowers white and 

 purple, in June ; Chili ; 1820. S. straminea (straw) ; half-hardy 

 biennial ; 2 feet ; flowers yellowish, in June ; Chili ; 1824. 



SALVIA. Sage. [Lamiaceae.] There are two kinds of 

 Salvia highly esteemed for the brilliance of their flowers, 

 S. splendens, scarlet, and S. patetts, brilliant blue ; but there 

 are many more that have nearly equal claims, and scores 

 that are merely weeds. Some of them are hardy, some half- 

 hardy ; some require a stove, some a greenhouse. Salvias 



