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Ferns

2009
Abstract Extant ferns form a monophyletic group of vascular plants (1–8) that number about 10,000 species divided unequally among Ave major lineages—ophioglossoids, whisk ferns, marattioids, horsetails, and leptosporangiates—and recognized in 11 orders and 37 families (9) (Fig. 1). theselineages are all spore-bearing and “seedfree” (10).
Kathleen M Pryerand, Eric Schuettpelz
openaire   +1 more source

Fern allergy

Allergy, 2000
H, Kofler   +3 more
openaire   +2 more sources

Louisiana Ferns and Fern Allies

American Fern Journal, 1982
David B. Lellinger, J. W. Thieret
openaire   +1 more source

Ferns and Fern Allies of Louisiana.

American Midland Naturalist, 1942
H. L. Blomquist   +2 more
openaire   +1 more source

Arkansas Ferns and Fern Allies

American Fern Journal, 1985
David B. Lellinger, W. Carl Taylor
openaire   +1 more source

Ferns

American Fern Journal, 1979
Robert Read, Philip Perl
openaire   +1 more source

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