This page has been validated.
Plate IV.
18. Bog Fern. Woodwardia virginica. 2 ft.; featherlets far apart, fruit dots oblong, parallel with midrib.
19. Aspidium goldianum. 2 to 3 ft.; fruit dots round near ribs.
20. Onoclea struthiopteris (struthiopteris germanica). 2 to 3 ft.; fertile on separate, curled-up, blackish fronds; stems angular; veins few and simple.