Page:Ferns and Evergreens New England.djvu/20

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.