Difference between revisions of "Orthothecium strictum"
Moosstudien, 122, plate 5, fig. D. 1864.
FNA>Volume Importer |
imported>Volume Importer |
||
Line 52: | Line 52: | ||
|publication year=1864 | |publication year=1864 | ||
|special status=Illustrated | |special status=Illustrated | ||
− | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V28/V28_868.xml |
|genus=Orthothecium | |genus=Orthothecium | ||
|species=Orthothecium strictum | |species=Orthothecium strictum |
Revision as of 23:49, 27 May 2020
Plants small, in tufts, orange. Stems 1–6 cm, 0.5 mm wide, erect to ascending, sparingly branched. Leaves erect-imbricate, straight, ovate-lanceolate, not to slightly plicate, 1 mm; margins partially recurved, serrulate distally; apex short, flexuose, subhyaline; costa double, short; basal laminal cells shorter than medial cells, brownish yellow; medial cells oblong-linear, 48–64 × 8 µm. Specialized asexual reproduction rare, by clusters of propagula in leaf axils, claviform, multicellular. Sporophytes unknown.
Habitat: Moist tundra, humus, soil, rock ledges, crevices
Elevation: low to high elevations (10-2800 m)
Distribution
![V28 868-distribution-map.gif](/w/images/4/42/V28_868-distribution-map.gif)
Alta., B.C., Man., Nfld. and Labr. (Nfld.), N.W.T., N.S., Nunavut, Que., Yukon, Alaska, Colo., Europe.
Discussion
Orthothecium strictum is distinguished by stems 0.5 mm wide and 1–6 cm long, and the indistinctly plicate, erect-imbricate, narrowly lanceolate leaves with revolute margins, ending in a short, flexuose, subhyaline acumination. The perichaetial leaves are ovate-lanceolate. A single collection (Alaska, Steere 18846, NY) had claviform multicellular propagula present in axils of leaves.
Selected References
None.