Difference between revisions of "Arctoa hyperborea"
Bryol. Europ. 1: 157. 1846,.
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− | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Bryum hyperboreum | |name=Bryum hyperboreum | ||
|authority=Gunnerus ex Withering | |authority=Gunnerus ex Withering | ||
+ | |publication_title=Syst. Arr. Brit. Pl. ed. | ||
+ | |publication_place=4, 3: 811. 1801 | ||
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|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_508.xml |
|genus=Arctoa | |genus=Arctoa | ||
|species=Arctoa hyperborea | |species=Arctoa hyperborea |
Revision as of 19:40, 24 September 2019
Plants in compact, dark green tufts. Stems 1–3(–5) cm. Leaves erect-spreading, lanceolate, subulate, 2–3 mm; costa 30–55 µm wide at base, short-excurrent, rough near tip; distal laminal cells mostly subquadrate (1–2:1), incrassate; basal laminal cells elongate, alar cells differentiated, quadrate or slightly enlarged. Seta 4–6(–8) mm. Capsule exserted, slightly curved, obscurely to distinctly ribbed when dry, annulus developed, separating; peristome large, not spreading outward when dry. Spores 18–30 µm.
Phenology: Capsules mature summer.
Habitat: Siliceous rock or soil
Elevation: high-alpine elevations
Distribution
Greenland, Europe.
Discussion
Arctoa hyperborea is a rare arctic-alpine moss found on rock ledges or crevices at high elevations. It is distinguished from other species of the genus by its short-excurrent costa, shorter seta (the length is highly variable), and peristome not spreading when dry.
Selected References
None.