THE DICOTYLEDONES 



1779 



Fig. 1670. — Eugenia uniflora. Surinam Cherry. Shoot with 

 fruits. Photograph supphed by courtesy of the Florida 

 Agricultural Experiment Station. 



Australia, where it forms one of the most characteristic features of the 

 vegetation. The largest is E. regnans which may reach a height of over 

 300 ft. and a girth of 30 ft. at 6 ft. from the base. Several species have been 

 introduced into this country but they are not completely hardy. E. globulus, 

 the Blue Gum, survives in the warmer parts forming a tree up to some 50 ft. 

 For the first few years it produces only juvenile leaves which are connate 

 and oval; later this foliage is replaced above by sickle-shaped leaves of the 

 permanent foliage. The tree has been known to flower in this country. 



Fu;. 1671. — Eucalyptus globulus. A, Flower bud in longitu- 

 dinal section before the cai>cular cap has been shed. 

 Oil glands shown in outer tissues. B, Open Hower. 

 {After Rendle.) 



The flowers (Fig. 1671) are somewhat peculiar. The receptacle unites with 

 the ovary to form a conical, hard, woody mass which is roofed over at the 



