34 GARDEN FLOWERS. 



buds first appear till they are dead, and that comprises one- 

 half the entire year. 



There are some forty species, most of which are hardy ; 

 the genus has, however, by later botanists been separated, 

 into Leucothce, Cassandra, Oxydendrum,^and Cassiope : of 

 A. polifolia there are many garden varieties. The following 

 are most ornamental : — 



A. (Leucothce) axillaris (axil-flowering) ; hardy evergreen 

 shrub; 2 feet ; flowers white, in June; North America; 1765. 

 A. (Cassandra) calycidata (small-calyxed) ; hardy shrub ; 2 feet ; 

 flowers white, in March ; North America ; 1748. A. (Leucothce) 

 Catesbcei (Catesby's) ; hardy evergreen shrub ; 2 feet ; flowers 

 white, in June ; North America ; 1793. A. floribunda (free- 

 flowering) ; hardy evergreen shrub ; 3 feet ; flowers white, in 

 May; North America ; 1812. A. polifolia (^o\y-\t.2MQ.(S)\ hardy 

 evergreen shrub ; i foot ; flowers pink, in July ; North America ; 

 1790. A. Mariana (stagger-bush); hardy deciduous shrub; 3 

 feet; flowers large white, in June; North America; 1763. Oxy- 

 dendrum arboreiun (sorrel-tree) is a very ornamental tree of the 

 second class, bearing in August large racemes of white flowers. 

 Hardy south of Massachusetts, 



Androsace. [Primulaceae.] Elegant alpine plants, re- 

 lated to the primroses ; the hardiest of them well adapted 

 for sheltered rock-work, and all very interesting ; grown in 

 pots. Soil, sandy peat and light turfy loam in about equal 

 proportions. Their greatest risk is from excess of moisture 

 about the crowns or roots ; and from dampness in winter 

 they are much more liable to suffer injury than from the de- 

 gree of cold. They ought to be kept in small pots, very well 

 drained ; and, in the application of water, great care is neces- 

 sary at all seasons, but especially in winter. In our sum- 

 mers, they require a cool situation. The perennial, bien- 

 nial, and annual species require the same kind of treatment, 



