Asplenium trichomanes subsp. quadrivalens
Ber. Deutsch. Bot. Ges. 74: 456. 1962.
Treatment appears in FNA Volume 2.
Spores (as measured in Hoyer's Solution) 37–43 µm. 2n = 144.
Habitat: Calcareous rocks such as limestone and dolomite
Elevation: 0–3000 m
Distribution
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B.C., Ont., Que., Conn., Del., Ill., Maine, Md., Mass., Mich., N.H., N.J., N.Y., Ohio, Oreg., Pa., Vt., Va., Wash., W.Va., Wis., Europe, Asia, Africa, Pacific Islands in New Zealand, Australia.
Discussion
Selected References
None.
Lower Taxa
None.