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Reference sources
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Field Guide to Ferns and their Related Families by
Call Number: URI Ref QK525 .C749 2005ISBN: 0618394060Covers basic fern biology. Identifies the ferns of northeastern and central North America and relatives such as club mosses. Color illustrations. -
A Field Manual of the Ferns and Fern-Allies of the United States and Canada
by
Call Number: URI Ref QK524.5 .L45 1985ISBN: 0874746027Publication Date: 1985-11-01More than 400 ferns, horsetails, and ground pines are described and illustrated. Keys and general biology of ferns also provided.