Difference between revisions of "Platylomella"
Bryologist 53: 58. 1950.
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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://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_497.xml |
|genus=Platylomella | |genus=Platylomella | ||
}}<!-- | }}<!-- | ||
-->[[Category:Treatment]][[Category:Amblystegiaceae]] | -->[[Category:Treatment]][[Category:Amblystegiaceae]] |
Revision as of 18:06, 18 September 2019
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).