ILLUSTRATED KEY TO THE GENERA 

 OF ORCHIDS 



Flowers solitary or several, large and showy. 

 Lip enlarged into a pouch. Anthers two, 

 one on each side of column. 



I. Cypripedium p. 3. 



Flowers several, purple and white or rose; 

 one anther with two diverging anther sacs. 

 Lip elongated into a spur, pollen masses 

 prolonged into a stalk with a gland. 



IL Orchis p. 19. 



XXIX 



