3 links
American Fern Society
amerfernsoc.org
Information on the biology and cultivation of ferns; activities of the society including a spore exchange and publication of Fiddlehead Forum, American Fern Journal, and Pteridolog…
Hardy Fern Foundation
hardyferns.org
A club established to develop a comprehensive collection of the world's hardy ferns for display, testing, evaluation, public education, and introduction for gardening and horticult…
San Diego Fern Society
sdfern.com
Information on fern culture and the activities of the society plus lists of books and experts.