Thelypteris dilatata var. americana (Fisch.) House

, New York State Mus. Bull. 233-234: 69 (1922).
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:251312-2
Publication
New York State Museum Bulletin. Albany, NY
Collation
233-234: 69
Family as entered in IPNI
Thelypteridaceae

Links

Nomenclatural link
Aspidium spinulosum var. americanum Fisch. ex Kunze, Amer. J. Sci. Arts ser. 2, 6: 83, 84 (1848).