Difference between revisions of "Platylomella lescurii"

(Sullivant) A. L. Andrews

Bryologist 53: 58. 1950.

EndemicIllustrated
Basionym: Hypnum lescurii Sullivant in A. Gray, Manual ed. 2, 679. 1856
Synonyms: Amblystegium lescurii (Sullivant) Austin Sciaromium lescurii (Sullivant) Brotherus
Treatment appears in FNA Volume 28. Treatment on page 319.
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}}{{Treatment/ID/Special_status
 
}}{{Treatment/ID/Special_status
 
|code=F
 
|code=F
|label=Selected by author to be illustrated
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|label=Illustrated
 
}}
 
}}
 
|basionyms={{Treatment/ID/Basionym
 
|basionyms={{Treatment/ID/Basionym
 
|name=Hypnum lescurii
 
|name=Hypnum lescurii
 
|authority=Sullivant
 
|authority=Sullivant
 +
|rank=species
 
|publication_title=in A. Gray, Manual ed.
 
|publication_title=in A. Gray, Manual ed.
 
|publication_place=2, 679. 1856
 
|publication_place=2, 679. 1856
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|name=Amblystegium lescurii
 
|name=Amblystegium lescurii
 
|authority=(Sullivant) Austin
 
|authority=(Sullivant) Austin
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|rank=species
 
}} {{Treatment/ID/Synonym
 
}} {{Treatment/ID/Synonym
 
|name=Sciaromium lescurii
 
|name=Sciaromium lescurii
 
|authority=(Sullivant) Brotherus
 
|authority=(Sullivant) Brotherus
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|rank=species
 
}}
 
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|hierarchy=Amblystegiaceae;Platylomella;Platylomella lescurii
 
|hierarchy=Amblystegiaceae;Platylomella;Platylomella lescurii
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-->{{#Taxon:
 
name=Platylomella lescurii
 
name=Platylomella lescurii
|author=
 
 
|authority=(Sullivant) A. L. Andrews
 
|authority=(Sullivant) A. L. Andrews
 
|rank=species
 
|rank=species
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|publication title=Bryologist
 
|publication title=Bryologist
 
|publication year=1950
 
|publication year=1950
|special status=Endemic;Selected by author to be illustrated
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|special status=Endemic;Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V28/V28_498.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V28/V28_498.xml
 
|genus=Platylomella
 
|genus=Platylomella
 
|species=Platylomella lescurii
 
|species=Platylomella lescurii

Revision as of 21:14, 16 December 2019

Plants in fine sods or loose mats. Stems 1–6(–10) cm, brownish black, prostrate, defoliate proximally, branches 1–2 cm, ascending, simple; paraphyllia becoming scarce in emergent plants; pseudoparaphyllia foliose; rhizoids matted, brown. Stem leaves somewhat contorted when dry, 0.5–1.3(–1.5) mm; limbidia sometimes disappearing before acumen or base, sometimes with spurs extending into lamina; costa 40–60(–75) µm wide at base; basal laminal cell walls thick, sometimes pitted. Perichaetia with leaves lanceolate, 0.5–0.8 mm, margins serrulate, apex acuminate, costate. Seta single, yellow to reddish brown, 1–3 cm, straight or flexuose, tortuose in aquatic plants. Capsule reddish brown, 1.5–3 mm, usually shrunken below mouth when dry; exothecial cells rectangular; stomata superficial; annulus deciduous, 2- or 3-seriate; operculum conic-apiculate; exostome teeth 16, yellowish brown, lanceolate, external surface cross striolate proximally, papillose distally, internal surface trabeculate; endostome pale yellow, basal membrane high, papillose. Calyptra yellow. Spores finely papillose, yellowish brown.


Phenology: Capsules mature spring–early summer.
Habitat: Wet rock, tree roots, rotting wood, base of trees along streams, waterfalls, seeps, submerged or in splash zone, lowland and montane deciduous or mixed deciduous-coniferous forests, acid and calcareous rock
Elevation: low to moderate elevations (0-1500 m)

Distribution

V28 498-distribution-map.gif

N.B., Nfld. and Labr. (Nfld.), N.S., Ont., Que., Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Ky., La., Maine, Md., Mass., Mo., N.H., N.J., N.Y., N.C., Okla., Pa., S.C., Tenn., Tex., Vt., Va., W.Va.

Discussion

Platylomella lescurii is distinguished by its mostly 2-stratose margins, filiform paraphyllia, and saxicolous substrate in streams and seeps. Sciaromium laxirete Abramova & I. I. Abramov, listed provisionally by R. Ochyra (1987) as a synonym of Platylomella lescurii, is known only as a Pliocene fossil from Bashkiria, western Eurasia.

Selected References

None.

Lower Taxa

None.
... more about "Platylomella lescurii"
John A. Christy +
(Sullivant) A. L. Andrews +
Hypnum lescurii +
N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Vt. +, Va. +  and W.Va. +
low to moderate elevations (0-1500 m) +
Wet rock, tree roots, rotting wood, base of trees along streams, waterfalls, seeps, submerged or in splash zone, lowland and montane deciduous or mixed deciduous-coniferous forests, acid and calcareous rock +
Capsules mature spring–early summer. +
Endemic +  and Illustrated +
Amblystegium lescurii +  and Sciaromium lescurii +
Platylomella lescurii +
Platylomella +
species +