Orthothecium chryseum

(Schwagrichen) Schimper in P. Bruch and W. P. Schimper
in P. Bruch and W. P. Schimper, Bryol. Europ. 5: 107. 1851.
Illustrated
Basionym: Hypnum chryseum Schwägrichen in J. A. Schultes, Reise Glockner 2: 364. 1804 (as chryseon)
Treatment appears in FNA Volume 28. Treatment on page 555. Mentioned on page 556.
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Illustrator: Patricia M. Eckel

Copyright: Flora of North America Association

Plants large, in tufts, golden. Stems 5–10 cm, 3 mm wide, erect or ascending, simple or sparingly branched. Leaves imbricate, ovate-lanceolate to ovate-triangular, strongly plicate, 1–5 mm; base slightly decurrent; margins partially recurved, entire; apex short-acuminate; ecostate or costa double, very short; basal laminal cells shorter, broader than medial cells, golden brown; medial cells linear, 84 × 6 µm. Specialized asexual reproduction absent. Seta golden brown. Capsule frequently slightly asymmetric, 1.5–1.8 mm. Spores 14–16 µm.

Distribution

V28 863-distribution-map.gif

North America, n, c Europe, Asia (Russian Arctic), Atlantic Islands (Iceland).

Discussion

Varieties 5 (2 in the flora).

Orthothecium chryseum has ovate-triangular perichaetial leaves. The sporophytes are infrequent; the capsules are ovoid-cylindric and contracted below the mouth when dry and empty.

Selected References

None.

... more about "Orthothecium chryseum"
Paul L. Redfearn Jr. +
(Schwagrichen) Schimper in P. Bruch and W. P. Schimper +
Hypnum chryseum +
North America +, n +, c Europe +, Asia (Russian Arctic) +  and Atlantic Islands (Iceland). +
in P. Bruch and W. P. Schimper, Bryol. Europ. +
Illustrated +
Holmgrenia +
Orthothecium chryseum +
Orthothecium +
species +