THE AMERICAN BOTANIST 



133 



not have strength to open at all. The inflorescence was ex- 

 ceedingly dwarfed being- much surpassed by the leaves, while 

 the reverse is ordinarily true in nature or in specimens under 

 glass in cultivation. 



That the plants are self-pollinated, I have proved to my 

 satisfaction as they fruit readily indoors under glass where 

 there is no possible chance for them to be visited by insects. 

 Neither in nature have I ever seen insects about the flowers. 

 The pollen masses are found attached to the stigmatic surface 

 when the flower opens so that as far as the welfare of the 

 species is concerned the flowers might just as well be cleisto- 

 gamous and remain closed. 



[That the twayblade, whether self-pollinated or not, bears 

 seeds abundantly in the open is shown by the photogTaph of a 

 colony of these plants in an Indiana woodland. The photo- 

 graph was sent by Albert C. A\^illiams. — Ed.] 



