Weissia muehlenbergiana

(Swartz) W. D. Reese & B. A. E. Lemmon

Bryologist 68: 282. 1965,.

Basionym: Phascum muehlenbergianum Swartz Adnot. Bot., 74. 1829
Synonyms: Astomum muehlenbergianum (Swartz) Grout
Treatment appears in FNA Volume 27. Treatment on page 517. Mentioned on page 513, 516.
(Redirected from Weissia muhlenbergiana)

Leaves long-lanceolate, base little differentiated to triangular or narrowly elliptic, shoulders absent, distal laminal margins plane or erect, apex broadly channeled or plane, acute, mucro very strong, of 6–10(–14) cells; costal adaxial stereid band smaller than the abaxial; distal laminal cells 8–10 µm wide. Sexual condition cladautoicous. Seta very short, less than 0.05 cm not including the vaginula. Capsule cleistocarpic, round, with a short-rostrate or conic, occasionally angled or curved apiculus.

Phenology: Capsules mature winter–spring.
Habitat: Soil, lawns, fields, among grasses, roadsides
Elevation: moderate elevations


V27 743-distribution-map.gif

Man., N.S., Ont., Que., Sask., Ala., Ariz., Fla., Ill., Iowa, Kans., Ky., La., Mass., Mich., Miss., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., Wis., e Asia.


As with Weissia ludoviciana, the gametophyte of W. muehlenbergiana is like that of W. brachycarpa, but differs to some extent in the distal leaf margins occasionally sharply inflexed. If the sporophyte has a hybrid origin, then the archegoniate parent has characteristics of both W. controversa and W. brachycarpa. The hybrid W. muehlenbergiana × W. controversa was reported by C. Williams (1966).

Selected References


Lower Taxa

... more about "Weissia muehlenbergiana"
Richard H. Zander +
(Swartz) W. D. Reese & B. A. E. Lemmon +
Phascum muehlenbergianum +
Man. +, N.S. +, Ont. +, Que. +, Sask. +, Ala. +, Ariz. +, Fla. +, Ill. +, Iowa +, Kans. +, Ky. +, La. +, Mass. +, Mich. +, Miss. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, Wis. +  and e Asia. +
moderate elevations +
Soil, lawns, fields, among grasses, roadsides +
Capsules mature winter–spring. +
Astomum muehlenbergianum +
Weissia muehlenbergiana +
species +