CALLISTEMON 



207 



FIG. 328. Lemon Guava. 



FIG. 329. Strawberry Guava. 



KEY TO THE SPECIES OF PSIDIUM 



*Branchlets more or less square. Shrub or tree 6-15 feet with the 1- 

 many (usually 3) short-stemmed flowers in the axils of the leaves, 

 June ; fruit 2-3 inches broad, globular, yellow, aromatic and astrin- 

 gent, July-Xov. LEMON GUAVA (:)i8) Psidium Guajava. 

 * Branchlets round. (A. ) 



A. Shrub 4-0 feet with hairy twigs, velvety leaves, and ovoid green- 

 ish yellow fruit with white flesh. ' BRAZIL GUAVA Psidium 

 Araca. . 



A. Shrub 8-10 feet with hairy twigs but the leaves smooth above; 

 fruit nearly round, deep yellow outside, with red flesh of delicious 

 flavor. GUIANA GUAVA Psidium guinee'nse. 



A. Shrub 10-20 fed with smooth twigs and thick smooth dark green 

 leaves; fruit round (about 1 inch), deep claret color and mudi 

 fig-like surface, a strawberry-like fragrance and flavor. STRAW- 

 BERRY GUAVA (329) Psidium Cattleianum. 



Callistemon. The BOTTLE-BRUSHES form a group of ornamental Aus- 

 tralian shrubs with simple alteinate entire-edged evergreen leaves. These, 

 like a number of other Australian plants, have the blades of the leaves 



