List of Illustrations 



PAGE 



Figures showing the structure of the Showy Orchid. 130 



Figures showing the Pollen of the Showy Orchid. 130 



Figures showing drooping tendency of Pollinia of the Showy 



Orchid. 132 



Figures showing the method of Pollination of the Showy 



Orchid. 132, 133 



Figure showing the structure of the Purple-Fringed Orchid. 136 

 Figure showing the structure of the Ragged Orchid. 137 



Figure illustrating structure of the Ragged Orchid (side view). 138 

 Figures illustrating method of fertilization of the Ragged 



Orchid. 139 



Figures illustrating structure of the Tubercled Orchid. 140 



Figure showing the structure of the Great Green Orchis. 142 



Figures showing method of its fertilization. 144 



Figures showing the structure of the Rattlesnake-Plantain. 145 



Figures showing disposition of the pollen in the Rattlesnake- 

 Plantain. 146 

 Figures illustrating method of pollination in the Rattlesnake- 

 Plantain. 147 

 Figure showing tongue of a Bee extended and folded beneath 



the head. 148 



Figures showing method of fertilization of the Arethusa. 154 



Figure giving profile view of the Pogonia. 155 



Figures illustrating method of pollination of the Pogonia. 156 



Figure showing structure of the Pink Moccasin-Flower. 158 



Cross-sections of the Moccasin-Flower showing Bee within. 160, 161 

 Cross-section of Moccasin-Flower showing Bee in contact with 



Stigma. 164 



Figure showing Bee raising Anther Lid of the Moccasin-Flower. 165 



