MYRTACEM. 



321 



rescence resembles a capitule, and the multiple fruit is here analogous 

 to that of Syncarpia in Metrosideros. Angophora a near neighbour 

 of Eucalyptus^ and, like most of them, Australian, has nearly the 

 same flower ; but the petals, membranous and much imbricated, are 



Eucalyptus Globulus. 



Fig. 300. Dehiscing bud. 



Fig. 299. Habit (of a young tree). 



nevertheless very distinct ; the summit is sometimes prolonged into 

 a sort of dorsal point. The calyx presents four or five distinct 

 teeth. The other characters are those of Eucalyptus^ of which 

 AngopJwra has the gynsecium ; where the seed is known, it is 

 solitary and apparently peltate. 



This series further includes two Australian genera somewhat 

 abnormal. One, Backhousia, has flowers the sepals of which become 

 large and more or less petaloid, with shorter petals, and, in each of 



VOL. VI. 21 



