ORCHIDS 



151 



interchanged as we see in the sectional view of 

 the rose pogonia. 



ROSE POGONIA; SNAKE-MOUTH POGONIA Pogonia ophioglos- 

 soides 



This is a very common orchid, to be found in 

 meadows and swamps from Canada to Florida, 

 and as far westward as Kansas. And, strange to 

 say, from thence it seems to jump across mountains 

 and sea, to flourish in Japan. 



The name "snake-mouth" 

 very well describes the shape 

 of this flower, a veritable 

 mouth formed by six petals 

 and sepals, the lower one, 

 forming the lip or chin, bear- 

 ing a mat of strongly coloured 

 tufts on which the bee may 

 travel to the nectary. 



The column, projecting 

 horizontally forward, bears 

 the stigma on its under side, 

 and the anther sacs on its 

 forward end. But the sacs 

 are covered by a spring lid 



SNAKE-MOUTH PO- 



holding in the pollen masses GONIA 



securely till the proper time comes. 



The bee can reach the nectar unimpeded, and if 



