GARDEN FLOWERS. 243 



Lythrum. [Lythraceae.] Hardy annuals or perennials ; 

 the former of little interest, the latter ornamental; often 

 thriving in damp and even wet situations. Z. alattun is a 

 sho^\y half-hardy plant, with long slender scarcely branched 

 stems, bearing purple flowers throughout the summer, and 

 not unsuited for a good-sized bed. The hardy perennials 

 grow in ordinary soil, and are increased by division ; the 

 half-hardy ones grow from cuttings, and should be potted in 

 a soil of three parts peat to one of loam. The annuals may 

 be sown in the open border in May. 



L. alatum (winged) ; half-hardy perennial ; 3 feet ; flowers 

 purple, in July ; Georgia; 18 12. Z. //;^<?^r<? (linear) ; hardy per- 

 ennial ; 18 inches ; flowers white, in July ; North America ; 181 2. 

 Z. inyrtifoliu!?i (myrtle-leaved) ; hardy perennial ; 2 feet ; flow- 

 ers purple, in July; North America; 1820. Z. Ptirshianiuii 

 (Pursh's) ; hardy perennial ; 18 inches ; flowers purple, in July ; 

 North America ; 1800. Z. salicaria (willow-like) ; hardy peren- 

 nial ; 4 feet ; flowers purple, in July ; England. Z. tomentosum 

 (woolly) ; hardy perennial ; 3 feet ; flowers purple, in July ; Cau- 

 casus ; 1828. Z. virgatuiii (twiggy) ; hardy perennial; 3 feet; 

 flowers purple, in June ; Austria ; 1776. 



