Difference between revisions of "Platylomella"
Bryologist 53: 58. 1950.
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|label=Endemic | |label=Endemic | ||
}} | }} | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Platyloma | |name=Platyloma | ||
|authority=Kindberg | |authority=Kindberg | ||
| + | |rank=genus | ||
| + | |publication_title=Gen. Eur. N.-Amer. Bryin., | ||
| + | |publication_place=22. 1897, | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Sciaromium sect. Platyloma | |name=Sciaromium sect. Platyloma | ||
|authority=Brotherus | |authority=Brotherus | ||
| + | |rank=section | ||
}} | }} | ||
|hierarchy=Amblystegiaceae;Platylomella | |hierarchy=Amblystegiaceae;Platylomella | ||
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|distribution=c;e North America. | |distribution=c;e North America. | ||
|discussion=<p>Species 1.</p><!-- | |discussion=<p>Species 1.</p><!-- | ||
| − | --><p>Platylomella has previously been included in Sciaromium (Mitten) Mitten, a synonym of Echinodium Juratzka (S. P. Churchill 1986).</p> | + | --><p><i>Platylomella</i> has previously been included in Sciaromium (Mitten) Mitten, a synonym of Echinodium Juratzka (S. P. Churchill 1986).</p> |
|tables= | |tables= | ||
|references={{Treatment/Reference | |references={{Treatment/Reference | ||
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|publication year=1950 | |publication year=1950 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V28/V28_497.xml |
|genus=Platylomella | |genus=Platylomella | ||
}}<!-- | }}<!-- | ||
-->[[Category:Treatment]][[Category:Amblystegiaceae]] | -->[[Category:Treatment]][[Category:Amblystegiaceae]] | ||
Latest revision as of 22:36, 5 November 2020
Plants small to somewhat large, dark green to blackish with yellowish green shoot apices. Stems fine, prostrate, irregularly branched or subpinnate; hyalodermis absent, central strand present; paraphyllia present, filiform; rhizoids basal or sometimes adventitious distally on decumbent shoots, forming tomentum, slightly branched, smooth; axillary hair distal cells 1 or 2, hyaline. Stem leaves erect-spreading, straight or incurved, cordate-ovate to ovate-lanceolate, not plicate, 0.5–1.5 mm; base not decurrent; margins plane, serrulate distally or to base, sometimes entire, limbidia conspicuous or sometimes inconspicuous, 2–4-stratose, cells incrassate; apex gradually or abruptly acuminate, sometimes apiculate, tips often obtuse; costa single, strong, percurrent to short-excurrent, usually confluent distally with limbidia; alar cells undifferentiated; basal laminal cells rectangular or oblong-hexagonal; distal cells short-rhomboidal to oblong-hexagonal, 6–12 × 15–40 µm. Branch leaves similar, slightly smaller and narrower. Sexual condition autoicous. Capsule horizontal to cernuous, oblong-cylindric, asymmetric, sometimes arcuate; peristome hypnoid; exostome margins dentate; endostome cilia appendiculate. Spores 12–17(–25) µm.
Distribution
c, e North America.
Discussion
Species 1.
Platylomella has previously been included in Sciaromium (Mitten) Mitten, a synonym of Echinodium Juratzka (S. P. Churchill 1986).