Difference between revisions of "Tetraplodon paradoxus"
Nyt Mag. Naturvidensk. 38: 332. 1901.
FNA>Volume Importer |
FNA>Volume Importer |
||
| Line 33: | Line 33: | ||
|elevation=moderate to high elevations | |elevation=moderate to high elevations | ||
|distribution=Greenland;N.W.T.;Nunavut;Yukon;Alaska;n Europe (Arctic Russia). | |distribution=Greenland;N.W.T.;Nunavut;Yukon;Alaska;n Europe (Arctic Russia). | ||
| − | |discussion=<p>Tetraplodon paradoxus is much confused in the literature with T. pallidus (W. C. Steere 1977), although the two are easily distinguished. Tetraplodon paradoxus is cleistocarpous, the setae are longer (to twice as long), leaves smaller and more narrow, and capsules are darker and spindle- or club-shaped, with the hypophysis noticeably narrower than the urn and having fewer stomata. Steere suggested that spore dispersal to fresh dung might occur when the sporophytes are ingested by caribou or muskoxen and the spores subsequently dropped in dung at some other location.</p> | + | |discussion=<p><i>Tetraplodon paradoxus</i> is much confused in the literature with <i>T. pallidus</i> (W. C. Steere 1977), although the two are easily distinguished. <i>Tetraplodon paradoxus</i> is cleistocarpous, the setae are longer (to twice as long), leaves smaller and more narrow, and capsules are darker and spindle- or club-shaped, with the hypophysis noticeably narrower than the urn and having fewer stomata. Steere suggested that spore dispersal to fresh dung might occur when the sporophytes are ingested by caribou or muskoxen and the spores subsequently dropped in dung at some other location.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 57: | Line 57: | ||
|publication year=1901 | |publication year=1901 | ||
|special status=Selected by author to be illustrated | |special status=Selected by author to be illustrated | ||
| − | |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/V28/V28_13.xml |
|genus=Tetraplodon | |genus=Tetraplodon | ||
|species=Tetraplodon paradoxus | |species=Tetraplodon paradoxus | ||
Revision as of 17:03, 18 September 2019
Plants 2–4 cm, light green or yellow-green. Leaves ovate, concave, 2–5 mm; margins entire or nearly so; apex acuminate; costa ending in subula; distal laminal cells hexagonal, 30 µm. Sexual condition autoicous. Seta clear pale yellow to stramineous, 2–3.5 cm. Capsule cleistocarpous, clear pale yellow to stramineous, spindle- or club-shaped; hypophysis conspicuously narrower than urn; stomata confined to distal hypophysis; operculum not developed. Calyptra cucullate or conic-mitrate. Spores 9 µm, smooth.
Phenology: Capsules mature summer.
Habitat: Caribou or muskox dung
Elevation: moderate to high elevations
Distribution
Greenland, N.W.T., Nunavut, Yukon, Alaska, n Europe (Arctic Russia).
Discussion
Tetraplodon paradoxus is much confused in the literature with T. pallidus (W. C. Steere 1977), although the two are easily distinguished. Tetraplodon paradoxus is cleistocarpous, the setae are longer (to twice as long), leaves smaller and more narrow, and capsules are darker and spindle- or club-shaped, with the hypophysis noticeably narrower than the urn and having fewer stomata. Steere suggested that spore dispersal to fresh dung might occur when the sporophytes are ingested by caribou or muskoxen and the spores subsequently dropped in dung at some other location.
Selected References
None.