TAXONOMY NYMPMAEA ODORATA. 



185 



and had stomata on the back near the apical region. Such leaves were 5 to 10 cm. 

 in diameter, mostly or entirely green beneath. The petioles were green or purplish- 

 green and had two large upper air-canals and two smaller lower ones, with no others 

 visible to the unaided eye. The thickened idioblasts were very numerous, probably giv- 

 ing the necessary stiffness to the petiole. 



MEASUREMENTS OF FLOWER I, MARLTON, N. J. 



i = Inner. st = Staminode. 



MEASUREMENTS OF SPECIMENS FROM RAQUETTE LAKE, N. Y. 



