Difference between revisions of "Sematophyllum demissum"
J. Linn. Soc., Bot. 8: 5. 1864.
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|name=Hypnum demissum | |name=Hypnum demissum | ||
|authority=Wilson | |authority=Wilson | ||
+ | |rank=species | ||
|publication_title=in J. E. Smith et al., Engl. Bot., suppl. | |publication_title=in J. E. Smith et al., Engl. Bot., suppl. | ||
|publication_place=2: plate 2740. 1832 | |publication_place=2: plate 2740. 1832 | ||
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|name=H. carolinianum | |name=H. carolinianum | ||
|authority=Müller Hal. | |authority=Müller Hal. | ||
+ | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Sematophyllum carolinianum | |name=Sematophyllum carolinianum | ||
|authority=(Müller Hal.) E. Britton | |authority=(Müller Hal.) E. Britton | ||
+ | |rank=species | ||
}} | }} | ||
|hierarchy=Sematophyllaceae;Sematophyllum;Sematophyllum demissum | |hierarchy=Sematophyllaceae;Sematophyllum;Sematophyllum demissum | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Sematophyllum demissum | name=Sematophyllum demissum | ||
− | |||
|authority=(Wilson) Mitten | |authority=(Wilson) Mitten | ||
|rank=species | |rank=species | ||
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|publication year=1864 | |publication year=1864 | ||
|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_896.xml |
|genus=Sematophyllum | |genus=Sematophyllum | ||
|species=Sematophyllum demissum | |species=Sematophyllum demissum |
Latest revision as of 21:38, 5 November 2020
Plants small to medium-sized, green to yellow-green, glossy. Stems 0.5–2.5 cm, branches sometimes ascending. Leaves straight or occasionally homomallous, oblong-ovate, tapering gradually to apex, 1–1.2 mm; margins reflexed proximally; apex acute; alar cells enlarged, inflated, yellow, in 1 row, supra-alar cells few, quadrate to short; laminal cells rhombic to flexuose. Specialized asexual reproduction absent. Seta 0.8–1.2 cm. Capsule inclined to horizontal, 1 mm.
Phenology: Capsules mature summer.
Habitat: Wet siliceous rock near streams
Elevation: low to moderate elevations
Distribution
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N.S., Ala., Ark., Conn., Fla., Ga., Iowa, Kans., La., Mich., Mo., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn.
Discussion
Sematophyllum demissum resembles Hageniella micans in many respects, but H. micans is distinguished by its strong double costa and toothed acumen. Also, exothecial cells of Sematophyllum are collenchymatous; those of Hageniella are not.
Selected References
None.