Difference between revisions of "Oligotrichum hercynicum"
Fl. Franç. ed. 3, 2: 492. 1805,.
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| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Polytrichum hercynicum | |name=Polytrichum hercynicum | ||
|authority=Hedwig | |authority=Hedwig | ||
| + | |rank=species | ||
| + | |publication_title=Sp. Musc. Frond., | ||
| + | |publication_place=94. 1801 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Oligotrichum incurvum | |name=Oligotrichum incurvum | ||
|authority=(Bridel) Lindberg | |authority=(Bridel) Lindberg | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Polytrichaceae;Oligotrichum;Oligotrichum hercynicum | |hierarchy=Polytrichaceae;Oligotrichum;Oligotrichum hercynicum | ||
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name=Oligotrichum hercynicum | name=Oligotrichum hercynicum | ||
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|authority=(Hedwig) Lamarck & de Candolle | |authority=(Hedwig) Lamarck & de Candolle | ||
|rank=species | |rank=species | ||
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| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V27/V27_178.xml |
|genus=Oligotrichum | |genus=Oligotrichum | ||
|species=Oligotrichum hercynicum | |species=Oligotrichum hercynicum | ||
Latest revision as of 21:24, 5 November 2020
Plants bright green, somewhat glaucous, becoming reddish brown with age. Stems 1–2.5(–3) cm. Leaves 2.5–5 mm, lanceolate from a weakly sheathing base, broadly incurved and subtubulose when dry, somewhat spreading but remaining incurved and strongly channeled distally when moist; margins entire to finely and distantly serrulate; costa percurrent or shortly excurrent as a short mucro, the adaxial surface with several low continuous or interrupted abaxial lamellae; abaxial surface of lamina smooth or sporadically with scattered short lamellae near the apex of leaf; adaxial lamellae 8–20, 6–13 cells high, restricted to the costa, crispate-undulate, extending to the middle of the leaf or below, the margins finely and irregularly crenulate with bulging marginal cells, smooth; median cells of lamina 15–20 µm, somewhat smaller towards the margins, rounded subquadrate, thick-walled; marginal teeth distant, minute, unicellular; perichaetial leaves 3–3.5 mm, narrowly lanceolate. Seta stout, pale brown, 2–4 cm. Capsule 2–4 mm, cylindric, slightly larger at the base, terete or irregularly angled or ridged; peristome teeth 32, double, somewhat irregular. Spores 10–15 µm.
Habitat: Soil, gravel, and moist peaty embankments, open disturbed sites, roadcuts, beside paths, on lake shores, stream banks, late snow areas, also aquatic in rapidly flowing glacier melt streams
Elevation: moderate to high elevations (500-2200 m)
Distribution
Greenland, Alta., B.C., Nfld. and Labr. (Nfld.), N.S., Yukon, Alaska, Mont., Oreg., Wash., Europe (southward to Spain, Turkey), e Asia (Japan).
Discussion
An arctic-alpine species widespread in northern latitudes, Oligotrichum hercynicum is a pioneer species, typically forming bright green patches on disturbed soil but, like O. falcatum, also in aquatic habitats.
Selected References
None.