Fern Resources

Cobb, Boughton, Elizabeth Farnsworth & Cheryl Lowe – Ferns – Peterson Field Guide
Cullina, William – Native Ferns, Moss, & Grasses
Tryon, Jr., R.M., NC Fassett, DW Dunlop, ME Diemer – Ferns and Fern Allies of Wisconsin
Hallowell, Anne C. and Barbara G. Hallowell – Fern Finder
Walewski, Joe – Ferns & Allies of the North Words