Discelium nudum

(Dickson) Bridel

Bryol. Univ. 1: 366. 1826,.

Basionym: Bryum nudum Dickson Fasc. Pl. Crypt. Brit. 4: 7, plate 10, fig. 15. 1801
Treatment appears in FNA Volume 27. Treatment on page 201.

Plants gregarious to widely spaced, obvious only when sporophytes present on persistent protonema.

Phenology: Capsules mature spring.
Habitat: Moist silty to fine sandy banks of somewhat shaded sites
Elevation: low to moderate elevations (5-1500 m)


V27 274-distribution-map.gif

Alta., B.C., N.W.T., N.S., Que., Calif., Ill., Mass., N.J., N.Y., Ohio, Pa., Wash., Europe, Asia.


Discelium nudum is a very distinctive species: red-brown peristome on subspherical to elongate horizontal capsule arise on twisted seta from reduced brownish gametophyte and persistent green protonema making it unlike any other North American moss. On the Pacific coast in southwestern British Columbia and adjacent Washington, the sporophyte is often 4–5 times the size noted in the rest of its world range. The capsules are often elongate rather than subspheric and setae can exceed 3 cm, compared to less than 1 cm elsewhere in its range.

Selected References


Lower Taxa

... more about "Discelium nudum"
Wilfred B. Schofield +
(Dickson) Bridel +
Bryum nudum +
Alta. +, B.C. +, N.W.T. +, N.S. +, Que. +, Calif. +, Ill. +, Mass. +, N.J. +, N.Y. +, Ohio +, Pa. +, Wash. +, Europe +  and Asia. +
low to moderate elevations (5-1500 m) +
Moist silty to fine sandy banks of somewhat shaded sites +
Capsules mature spring. +
Bryol. Univ. +
Discelium nudum +
Discelium +
species +