American Fern Society	http://amerfernsoc.org
Large multi-featured site hosts a spore exchange.
British Pteridological Society	www.nhm.ac.uk/hosted_sites/bps
Connecticut Botanical Society	www.ct-botanical-society.org/ferns/
Photographs and descriptions of Connecticut's 40 most common ferns. Also table of ID characteristics.
DiversityOfLife	www.plantsystematics.org
Fancy Fronds Nursery	www.fancyfronds.com
Online database, pictures of many of the hardy ferns they sell. Also hardiness zone map. Located in Washington State.
Subscribe to FERNET	mailto: majordomo@hort.net website: http://www.hort.net/lists/ferns Send command: SUBSCRIBE FERNS (or subscribe ferns-digest)
Listserver about ferns; scientific, horticultural, etc. Some great conversations and information; hardly any spam.
FERN RESOURCE HUB (sdfs)	www.sdfern.com
(Most comprehensive U.S. site on ferns, operated by the San Diego Fern Society.) Unavailable February 2011 & December 2012; closed for reconstruction.
Flora of North America	http://www.efloras.org/volume_page.aspx?volume_id=1002&flora_id=1
This 1993 reference book, of which the fern section is complete, is entirely online. It attempts to provide a consensus nomenclature.
Found in the Fells	www.foundinthefells.com
Bryan Hamlin's discussion of the botany of the Middlesex Fells Reservation in Massachusetts north of Boston, including details of the just-completed and just-published thorough flora of the area.
Grow Native Massachusetts	www.grownativemass.org
Organization dedicated to the preservation and horticulture of native plants.
Arthur Haines' website includes Flora Novae Angliae	www.arthurhaines.com
Extensive web presence including many excellent photographs. Not only pteridophytes.
Hardy Fern Foundation	www.hardyferns.org
Hardy Fern Library	www.hardyfernlibrary.com
Tom Stuart's large and very well organized site includes data and photographs of most of our ferns.
Mike Rosenthal's Fern Site	http://www.msrosenthal.com/Ferns/index.htm
Many beautiful photographs
Natural History of the Northwoods	http://www.rook.org/earl/bwca/nature/index.html
New England Botanical Club	www.rhodora.org
Monthly meetings at Harvard during academic year. Collection of New England plants at Harvard's herbaria. Publish Rhodora.
New England Wild Flower Society	newenglandWILD.org
The large Garden In The Woods has >50 fern species. (Admission $6) Plants and books for sale. The Society sponsors many classes and field trips, and also biodiversity conservation.
Newton MA Conservators pteridophyte table	http://www.newtonconservators.org/masterlist/ferns.pdf
Results of several years of surveying the parks and open spaces of Newton
Ray Angelo's County Atlas	neatlas.org
Maps with dots show which counties in New England have recorded each species & hybrid.
Rhode Island Ferns	http://among-ri-wildflowers.org/RI_Ferns1.html
Kathy Barton has laid out photographs and information for all the ferns extant in Rhode Island, with some ID notes from me.
Erika Sonder's "Portable Herbarium"	www.portableherbarium.com
Beautiful color photoreproductions of herbarium sheets of ferns and other plants, for sale. (See Equisetum sylvaticum)
Herb Wagner's FNA Article on Ferns	click here
Long authoritative well-written article from the Flora of North America vol. 2, Ch. 12. about the pteridophytes of the U.S. and Canada.

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