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. [Salicaceae.] A large genus of decid- 

 uous shrubs and 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 Napoleonaj S. cit^rea petidiila. 



There are some two hundred species and varieties. 



Salpiglossis. [Solanaceae.] 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 Schizanthiis. 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. atroptirpiirea (dark-purple) ; half-hardy biennial ; 2 feet ; 

 flowers dark-purple, in June; Chili; 1827. vS". Barclay ana 

 (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. hitea (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, 6*. straminea (straw) ; half-hardy 

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



Salvia. Sage. [Labiatae.] There are two kinds of Sal- 

 via highly esteemed for the brilliance of their flowers, — 

 S. splende?is, scarlet, and S. patens, 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 



