— 8o— 



4. Goldie's fern (X. Goldieanum, Fig. 3.) greatly resembles the 

 preceding species, so much so that a recent European writer has 

 classed them both as varieties of the old world N. Ulixmas. That 

 they are very different may be seen from the illustration, for the 

 pinnules of Goldieanum are not separate on the midribs. The 

 fronds are also thinner and larger and I may add scarcer, while 

 the fruit-dots are not so near the margins. 



Fig. r, Middle pinna of .V. cristatum. Fig 2, same of N. marginale' 

 Fig. 3. pinnules of N. Goldieanum. Fig 4, a pinnule of N. marginale. Fig. 

 5, middle pinna of X. noveboracense. Fig. 6, same of N. simulation. Fig. 7, 

 same of N. thelypteris. 



In wet woods, or on the borders of swamps, and in many 

 other moist places, one may find the crested fern (A r . cristatum, 

 Fig. 1.) It may be distinguished by its erect fertile fronds, pros- 

 trate sterile ones, by the large sori and by the pinnules of fertile 

 fronds being usually set upon the rachis. like slats in a half open 

 blind. The fertile fronds are long and narrow. N. Boottii is 

 something like this species, but the fronds are broader, the sori 

 smaller, the differences between sterile and fertile fronds not so 



