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
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.