Rhytidium rugosum

(Hedwig) Kindberg

Bih. Kongl. Svenska Vetensk.-Akad. Handl. 7(9): 15. 1883

Illustrated
Basionyms: Hypnum rugosum Hedwig Sp. Musc. Frond., 293. 1801
Treatment appears in FNA Volume 28. Treatment on page 339.

Plants to 10 cm, yellowish green to golden brown. Stems 2–3 mm wide across leafy stem, turgid from crowded leaves, often hooked at apices, branches to 10 mm. Stem leaves 2.8–4.5 × 0.8–1.5 mm; alar cells many, 8–20 × 8–12 µm, region broad, triangular, along margin; medial laminal cells 25–55 × 4–6 µm. Branch leaves 1.2–2.3 × 0.4–0.8 mm. Seta 2–2.5 cm. Capsule 2–2.5 mm.


Phenology: Capsules mature summer.
Habitat: Rock, thin layer of soil or humus overlying rock, calcareous or mafic, exposed rock ledges, rocky slopes, bluffs, semi-open dry forests, in tundra, much less common on moist sites
Elevation: low to high elevations (100-3900 m)

Distribution

V28 528-distribution-map.gif

Greenland, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., Que., Sask., Yukon, Alaska, Ariz., Colo., Conn., Ill., Ind., Iowa, Ky., Maine, Md., Mass., Mich., Minn., Mo., Mont., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Oreg., Pa., S.Dak., Tenn., Tex., Vt., Va., W.Va., Wis., Wyo., Mexico, Central America (Guatemala), South America (Bolivia), Eurasia, Africa (Kenya, Morocco, Uganda).

Discussion

Though widespread, Rhytidium rugosum is infrequent, presumably because of a preference for exposed calcareous or mafic bedrock in a cool habitat. The plants are rarely found with sporophytes; perhaps almost total reliance on asexual reproduction explains the strong morphological uniformity seen among specimens of R. rugosum collected from across its broad range.

Selected References

None.

Lower Taxa

None.

... more about "Rhytidium rugosum"
Joseph R. Rohrer +
(Hedwig) Kindberg +
Hypnum rugosum +
Greenland +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Nunavut +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Ariz. +, Colo. +, Conn. +, Ill. +, Ind. +, Iowa +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, Mont. +, N.H. +, N.J. +, N.Mex. +, N.Y. +, N.C. +, Ohio +, Oreg. +, Pa. +, S.Dak. +, Tenn. +, Tex. +, Vt. +, Va. +, W.Va. +, Wis. +, Wyo. +, Mexico +, Central America (Guatemala) +, South America (Bolivia) +, Eurasia +, Africa (Kenya +, Morocco +  and Uganda). +
low to high elevations (100-3900 m) +
Rock, thin layer of soil or humus overlying rock, calcareous or mafic, exposed rock ledges, rocky slopes, bluffs, semi-open dry forests, in tundra, much less common on moist sites +
Capsules mature summer. +
Bih. Kongl. Svenska Vetensk.-Akad. Handl. +
Illustrated +
Rhytidium rugosum +
Rhytidium +
species +