Difference between revisions of "Gemmabryum caespiticium"
Phytologia 91: 497. 2009.
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}} | }} | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Bryum caespiticium | |name=Bryum caespiticium | ||
|authority=Hedwig | |authority=Hedwig | ||
| + | |rank=species | ||
| + | |publication_title=Sp. Musc. Frond., | ||
| + | |publication_place=180. 1801 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Ptychostomum imbricatulum | |name=Ptychostomum imbricatulum | ||
|authority=(Müller Hal.) D. T. Holyoak & N. Pedersen | |authority=(Müller Hal.) D. T. Holyoak & N. Pedersen | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Bryaceae;Gemmabryum;Gemmabryum sect. Caespitibryum;Gemmabryum caespiticium | |hierarchy=Bryaceae;Gemmabryum;Gemmabryum sect. Caespitibryum;Gemmabryum caespiticium | ||
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|elevation=low to high elevations (0-4000 m) | |elevation=low to high elevations (0-4000 m) | ||
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Md.;Mass.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Mexico (Baja California;Hidalgo);s South America;Europe;Asia;Africa;Atlantic Islands;Pacific Islands;Australia. | |distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Md.;Mass.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Mexico (Baja California;Hidalgo);s South America;Europe;Asia;Africa;Atlantic Islands;Pacific Islands;Australia. | ||
| − | |discussion=<p>The combination of small caespitose plants with ovate-lanceolate concave leaves, strong awns, and inflated subalar cells on fertile stems is diagnostic of Gemmabryum caespiticium. The last character is also a diagnostic character of sect. Cladodium of Ptychostomum and known from a few other species in other genera (for example, Bryum dyffryense Holyoak).</p> | + | |discussion=<p>The combination of small caespitose plants with ovate-lanceolate concave leaves, strong awns, and inflated subalar cells on fertile stems is diagnostic of <i>Gemmabryum caespiticium</i>. The last character is also a diagnostic character of sect. Cladodium of <i>Ptychostomum</i> and known from a few other species in other genera (for example, <i>Bryum</i> dyffryense Holyoak).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Gemmabryum caespiticium | name=Gemmabryum caespiticium | ||
| − | |||
|authority=(Hedwig) J. R. Spence | |authority=(Hedwig) J. R. Spence | ||
|rank=species | |rank=species | ||
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|publication year=2009 | |publication year=2009 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V28/V28_205.xml |
|genus=Gemmabryum | |genus=Gemmabryum | ||
|section=Gemmabryum sect. Caespitibryum | |section=Gemmabryum sect. Caespitibryum | ||
Latest revision as of 21:34, 5 November 2020
Plants large. Stems 0.1–2(–3) cm. Leaves weakly to moderately concave, 0.5–2(–3) mm; margins plane to strongly revolute, limbidium distinct to weak, of 1 or 2 rows of elongate incrassate cells; apex occasionally hyaline with age; costa short- to long-excurrent, awn brown, yellow-brown, or sometimes hyaline, smooth or rarely somewhat denticulate, 1/4–3/4 leaf length; proximal laminal cells abruptly quadrate to rectangular, 1–2:1 away from costa, 2–4:1 along costa; medial and distal cells long-hexagonal, 12–18(–20) µm wide, (3–)4–6:1. Specialized asexual reproduction rare, by deciduous brood branchlets in distal leaf axils, and rhizoidal tubers, red, spheric, 100–200 µm, cells smooth. Capsule with endostome segments pale tan, brown, red-brown, or rarely pale yellow. Spores 8–14(–16) µm.
Phenology: Capsules mature Apr–Aug (spring–summer).
Habitat: Disturbed soil, earth banks, rotten wood, rock, disturbed habitats
Elevation: low to high elevations (0-4000 m)
Distribution
Greenland, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., P.E.I., Que., Sask., Yukon, Alaska, Ariz., Ark., Calif., Colo., Conn., Del., D.C., Idaho, Ill., Ind., Iowa, Kans., Ky., Md., Mass., Mich., Minn., Mo., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo., Mexico (Baja California, Hidalgo), s South America, Europe, Asia, Africa, Atlantic Islands, Pacific Islands, Australia.
Discussion
The combination of small caespitose plants with ovate-lanceolate concave leaves, strong awns, and inflated subalar cells on fertile stems is diagnostic of Gemmabryum caespiticium. The last character is also a diagnostic character of sect. Cladodium of Ptychostomum and known from a few other species in other genera (for example, Bryum dyffryense Holyoak).
Selected References
None.