Difference between revisions of "Pohlia melanodon"
Bryologist 84: 506. 1982.
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|special_status={{Treatment/ID/Special_status | |special_status={{Treatment/ID/Special_status | ||
|code=F | |code=F | ||
| − | |label= | + | |label=Illustrated |
}} | }} | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Bryum melanodon | |name=Bryum melanodon | ||
|authority=Bridel | |authority=Bridel | ||
| + | |rank=species | ||
| + | |publication_title=Bryol. Univ. | ||
| + | |publication_place=1: 845. 1827 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=B. carneum | |name=B. carneum | ||
|authority=Withering | |authority=Withering | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=B. delicatulum | |name=B. delicatulum | ||
|authority=Hedwig | |authority=Hedwig | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Mielichhoferiaceae;Pohlia;Pohlia melanodon | |hierarchy=Mielichhoferiaceae;Pohlia;Pohlia melanodon | ||
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|elevation=low elevations | |elevation=low elevations | ||
|distribution=Ont.;Ark.;Ill.;Ind.;Maine;Md.;Mich.;N.Y.;N.C.;Vt.;Va.;W.Va.;Europe. | |distribution=Ont.;Ark.;Ill.;Ind.;Maine;Md.;Mich.;N.Y.;N.C.;Vt.;Va.;W.Va.;Europe. | ||
| − | |discussion=<p>Pohlia melanodon has soft, dark green, rather broad ovate-lanceolate leaves with lax, thin-walled cells. The species does not produce elongate sterile cushions as does P. wahlenbergii; even when sterile, the plants have short stems and are rather densely leafy. Pohlia melanodon is more common in eastern North America than collections indicate; it is often sterile and for that reason rarely collected. The exothecial cell walls of capsules of this species are somewhat collenchymatous.</p> | + | |discussion=<p><i>Pohlia melanodon</i> has soft, dark green, rather broad ovate-lanceolate leaves with lax, thin-walled cells. The species does not produce elongate sterile cushions as does <i>P. wahlenbergii</i>; even when sterile, the plants have short stems and are rather densely leafy. <i>Pohlia melanodon</i> is more common in eastern North America than collections indicate; it is often sterile and for that reason rarely collected. The exothecial cell walls of capsules of this species are somewhat collenchymatous.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Pohlia melanodon | name=Pohlia melanodon | ||
| − | |||
|authority=(Bridel) A. J. Shaw | |authority=(Bridel) A. J. Shaw | ||
|rank=species | |rank=species | ||
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|publication title=Bryologist | |publication title=Bryologist | ||
|publication year=1982 | |publication year=1982 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V28/V28_338.xml |
|genus=Pohlia | |genus=Pohlia | ||
|species=Pohlia melanodon | |species=Pohlia melanodon | ||
Latest revision as of 21:35, 5 November 2020
Plants small, dark green, not glossy. Stems 0.3–1 cm. Leaves erect-spreading to spreading, lanceolate to ovate-lanceolate, 0.7–1.3 mm; base not or scarcely decurrent; margins weakly serrulate in distal 1/3; apex acute or short-acuminate; costa ending well before apex; distal medial laminal cells laxly and broadly rhomboidal, 60–100 µm, walls thin. Specialized asexual reproduction absent. Sexual condition dioicous; perigonial leaves ovate; perichaetial leaves scarcely differentiated, lanceolate. Seta orange-brown. Capsule inclined ± 180°, brown to red-brown, sometimes stramineous, short-pyriform to urceolate, neck less than 1/3 urn length; exothecial cells isodiametric, walls sinuate; stomata immersed; annulus absent; operculum short- to long-conic; exostome teeth dark brown to red-brown, triangular-acute; endostome yellow to yellow-brown, basal membrane 1/2 exostome length or slightly longer, segments tapered apically, distinctly keeled, broadly perforate, cilia long, nodulose. Spores 13–18 µm, finely roughened.
Phenology: Capsules mature spring (Apr–Jun).
Habitat: Disturbed clay or rarely sandy soil, path banks, along streams
Elevation: low elevations
Distribution
Ont., Ark., Ill., Ind., Maine, Md., Mich., N.Y., N.C., Vt., Va., W.Va., Europe.
Discussion
Pohlia melanodon has soft, dark green, rather broad ovate-lanceolate leaves with lax, thin-walled cells. The species does not produce elongate sterile cushions as does P. wahlenbergii; even when sterile, the plants have short stems and are rather densely leafy. Pohlia melanodon is more common in eastern North America than collections indicate; it is often sterile and for that reason rarely collected. The exothecial cell walls of capsules of this species are somewhat collenchymatous.
Selected References
None.