Plate IV. 
Bog Fern. Woodwardia virginica. 2 ft. ; featherlets far apart, fruit dots 
oblong, parallel with midrib. 
Aspidium goldianum. 2 to 3 ft. ; fruit dots round near ribs. 
Ondclea strut hiopteris {struthiopteris germanica). 2 to 3 ft.; fertile on 
separate, curled-up, blackish fronds; stems angular; veins few 
and simple. 
