Plate No. 6. 



1 = Ophioglossum vulgatum, X H- 2 = 



3 m Botrychium Ian nlatum, X '•.>. 4 = 



5 = Botrychium Onondagense, X l A- 6 = 



X %. 7 = Botrychium silaifolium, X H- 



Botrychium lunar ia, X H- 

 liotrychium neglccturn, X M- 

 • Botrychium Yirginianum, 



90 



