GAMOPETAL^ 293 



with a larger terminal lobe, the lateral entire, and 

 with narrow segments. 



The flowers are in terminal corymb-like cymes, 

 and vary in form and size. The flowers are pink, 

 the female are darker and denser. The bracts are 

 linear. The tube of the corolla is short. The 

 stamens project in the barren flowers. In the small 

 complete flowers the stamens are included, and the 

 flowers form a close corymb. The fruit is smooth, 

 and small. 



May and June are the months when this plant is 

 in flower. The plant is a herbaceous perennial. It 

 varies between 2 and 4 ft. in height. 



The flowers are unisexual, the plant being usually 

 dioecious and tetramorphic, and the following types 

 have been met with : male flowers with a large 

 corolla and no pistil, male flowers with a smaller 

 corolla and a rudimentary pistil, female flowers with 

 a still smaller corolla and rudimentary anthers, 

 female flowers with a very small corolla, and no 

 anthers. The male flowers being larger than the 

 female, insects would naturally first visit them. As 

 the plant is dioecious, pollination must be effected by 

 insects (or by the wind, which is not the rule). The 

 anthers ripen first, or the stigmas. In rare cases the 

 flowers are complete or hermaphrodite. Honey is 

 secreted in the spur of the corolla. The male florets 

 have a tube 2 J to 3 mm. long, wider above, whereas 

 it is only i mm. long in the female florets. Short- 

 lipped insects can reach the honey in either case. 



