The petals purple-spotted at base MACEOPHYLLA 



The stamens with scarlet filaments. 

 Leaves mostly clustered at 



ends of branches. . . HYPOLEUCA 

 Leaves scattered along the 



branches WATSONI 



Color of flowers pure white. 



Size of flowers small (1 to 3 inches across). 

 Shrub or tree, 10 to 70 feet 



hifeh GLAUCA 



Shrub, usually 4 to 5 feet 



high PUMILA 



Size of flowers large, 6 to 9 inches 

 across. 



Foliage evergreen FCETIDA 



Foliage deciduous. 



Leaves eared at base FRASERI 



Leaves not eared at base TRIPETALA 



115 



