Difference between revisions of "Arctoa anderssonii"
Flora 42: 432, plate 7, figs. 3–8. 1859,.
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− | |discussion=<p>A rare high-arctic species, Arctoa anderssonii was once considered a variety of A. fulvella, but is distinguished by a short seta, large perichaetial leaves, and straight, immersed capsule. It has a costa that is more shortly excurrent than that of A. fulvella but longer than that of A. hyperborea.</p> | + | |discussion=<p>A rare high-arctic species, <i>Arctoa anderssonii</i> was once considered a variety of <i>A. fulvella</i>, but is distinguished by a short seta, large perichaetial leaves, and straight, immersed capsule. It has a costa that is more shortly excurrent than that of <i>A. fulvella</i> but longer than that of <i>A. hyperborea</i>.</p> |
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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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V27/V27_506.xml |
|genus=Arctoa | |genus=Arctoa | ||
|species=Arctoa anderssonii | |species=Arctoa anderssonii |
Revision as of 17:55, 18 September 2019
Plants small, in compact, yellow-brown or green tufts. Stems (0.5–)1–2(–4) cm. Leaves erect spreading or falcate-secund, lanceolate, subulate, 2–3 mm; costa 30–55 µm wide at base, long-excurrent, rough near tip; distal laminal cells mostly quadrate (2–5:1), incrassate; basal laminal cells elongate, alar cells differentiated. Perichaetial leaves much larger than stem leaves. Seta short, 1–3 mm. Capsule immersed in perichaetial leaves, straight; peristome teeth spreading outward when dry. Spores 16–27 µm.
Phenology: Capsules mature summer.
Habitat: Siliceous rock
Elevation: high elevations
Distribution
Greenland, Yukon, Europe.
Discussion
A rare high-arctic species, Arctoa anderssonii was once considered a variety of A. fulvella, but is distinguished by a short seta, large perichaetial leaves, and straight, immersed capsule. It has a costa that is more shortly excurrent than that of A. fulvella but longer than that of A. hyperborea.
Selected References
None.