Thamnobryum alleghaniense

(Müller Hal.) Nieuwland

Amer. Midl. Naturalist 5: 51. 1917. 1917

Illustrated
Basionyms: Hypnum alleghaniense Müller Hal. Syn. Musc. Frond. 2: 502. 1851
Treatment appears in FNA Volume 28. Treatment on page 614.

Plants (3–)5–8(–10) cm. Secondary stem leaves 2–3.5 × 1.4 mm. Branch leaves ovate, 1.5–2 × 0.5–0.6 mm; margins coarsely serrate at apex; apex acute to acuminate; basal laminal cells 6–10 × 1–2 µm; medial juxtacostal cells short-rhomboidal, longest axis 45° to costa, 3–5 × 1–2 µm; apical cells elongate-rhombic, 3–5 × 1–2 µm. Sexual condition synoicous or autoicous.


Habitat: Rock, logs, deeply shaded wet rock ledges, limestone cliffs, sandstone of Tsuga hardwood forests, mixed deciduous forests
Elevation: moderate elevations

Distribution

V28 966-distribution-map.gif

N.B., N.S., Ont., Que., Ala., Ark., Conn., Ga., Ill., Ind., Ky., Maine, Md., Mass., Mo., N.H., N.J., N.Y., N.C., Ohio, Pa., S.C., Tenn., Vt., Va., W.Va., Wis., Europe, Asia (China).

Discussion

Thamnobryum alleghaniense is distinguished by the elongate-rhombic apical cells of the branch leaves, and by the longest axis of medial cells near the costa oriented at a 45° angle. The branches are incurved when dry.

Selected References

None.

Lower Taxa

None.

... more about "Thamnobryum alleghaniense"
Inés Sastre-De Jesús +
(Müller Hal.) Nieuwland +
Hypnum alleghaniense +
N.B. +, N.S. +, Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Ga. +, Ill. +, Ind. +, Ky. +, Maine +, Md. +, Mass. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, S.C. +, Tenn. +, Vt. +, Va. +, W.Va. +, Wis. +, Europe +  and Asia (China). +
moderate elevations +
Rock, logs, deeply shaded wet rock ledges, limestone cliffs, sandstone of Tsuga hardwood forests, mixed deciduous forests +
Amer. Midl. Naturalist +
Illustrated +
Thamnobryum alleghaniense +
Thamnobryum +
species +