Difference between revisions of "Orthotrichum laevigatum"
Öfvers. Kongl. Vetensk.-Akad. Förh. 19: 363. 1862.
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|name=Orthotrichum hainesiae | |name=Orthotrichum hainesiae | ||
|authority=Austin | |authority=Austin | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. kingianum | |name=O. kingianum | ||
|authority=Lesquereux | |authority=Lesquereux | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. laevigatum var. kingianum | |name=O. laevigatum var. kingianum | ||
|authority=(Lesquereux) Grout | |authority=(Lesquereux) Grout | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. lonchothecium | |name=O. lonchothecium | ||
|authority=Austin | |authority=Austin | ||
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|name=O. macounii | |name=O. macounii | ||
|authority=Austin | |authority=Austin | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. macounii var. lonchothecium | |name=O. macounii var. lonchothecium | ||
|authority=(Macoun & Kindberg) Grout | |authority=(Macoun & Kindberg) Grout | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. raui | |name=O. raui | ||
|authority=Venturi | |authority=Venturi | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. roellii | |name=O. roellii | ||
|authority=unknown | |authority=unknown | ||
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|name=O. roellii subsp. schlotthaueri | |name=O. roellii subsp. schlotthaueri | ||
|authority=(Venturi) Kindberg | |authority=(Venturi) Kindberg | ||
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|name=O. roellii subsp. stenocarpum | |name=O. roellii subsp. stenocarpum | ||
|authority=(Venturi) Kindberg | |authority=(Venturi) Kindberg | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. schlotthaueri | |name=O. schlotthaueri | ||
|authority=unknown | |authority=unknown | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. speciosum var. brevicaule | |name=O. speciosum var. brevicaule | ||
|authority=Lesquereux | |authority=Lesquereux | ||
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|name=O. speciosum var. hainesiae | |name=O. speciosum var. hainesiae | ||
|authority=(Austin) Paris | |authority=(Austin) Paris | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. speciosum subsp. laevigatum | |name=O. speciosum subsp. laevigatum | ||
|authority=(J. E. Zetterstedt) J. J. Amann | |authority=(J. E. Zetterstedt) J. J. Amann | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. speciosum var. polyanthum | |name=O. speciosum var. polyanthum | ||
|authority=Lesquereux | |authority=Lesquereux | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. speciosum var. polycarpum | |name=O. speciosum var. polycarpum | ||
|authority=Lesquereux & James | |authority=Lesquereux & James | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=O. speciosum var. raui | |name=O. speciosum var. raui | ||
|authority=(Austin) Lesquereux & James | |authority=(Austin) Lesquereux & James | ||
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|elevation=moderate to high elevations (500-3000 m) | |elevation=moderate to high elevations (500-3000 m) | ||
|distribution=Alta.;B.C.;Man.;N.W.T.;Sask.;Yukon;Alaska;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;S.Dak.;Utah;Wash.;Wyo.;Europe;e Asia (Japan). | |distribution=Alta.;B.C.;Man.;N.W.T.;Sask.;Yukon;Alaska;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;S.Dak.;Utah;Wash.;Wyo.;Europe;e Asia (Japan). | ||
− | |discussion=<p>Orthotrichum laevigatum is part of a complex group of intergrading taxa that generally are characterized by exserted, cylindric capsules with 16 erect or reflexed exostome teeth and a poorly developed endostome. Gametophytically, robust plants have stiff, erect leaves and large, blunt papillae. This complex is treated here as three species: O. holzingeri, a distinct, highly specialized species of seasonally wet rock with smooth exostome teeth, smooth laminal cells, smooth calyptra, and slightly ribbed capsule as distinguishing features; O. laevigatum, distinguished by smooth capsule and erect, papillose exostome teeth; and O. pylaisii, distinguished by slightly 8-ribbed capsule and reflexed-recurved exostome teeth.</p> | + | |discussion=<p><i>Orthotrichum laevigatum</i> is part of a complex group of intergrading taxa that generally are characterized by exserted, cylindric capsules with 16 erect or reflexed exostome teeth and a poorly developed endostome. Gametophytically, robust plants have stiff, erect leaves and large, blunt papillae. This complex is treated here as three species: <i>O. holzingeri</i>, a distinct, highly specialized species of seasonally wet rock with smooth exostome teeth, smooth laminal cells, smooth calyptra, and slightly ribbed capsule as distinguishing features; <i>O. laevigatum</i>, distinguished by smooth capsule and erect, papillose exostome teeth; and <i>O. pylaisii</i>, distinguished by slightly 8-ribbed capsule and reflexed-recurved exostome teeth.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1862 | |publication year=1862 | ||
|special status=Selected by author to be illustrated | |special status=Selected by author to be illustrated | ||
− | |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_76.xml |
|genus=Orthotrichum | |genus=Orthotrichum | ||
|species=Orthotrichum laevigatum | |species=Orthotrichum laevigatum |
Revision as of 18:08, 18 September 2019
Plants (0.5–)2(–4.3) cm, light green to olive green. Stem leaves stiff, erect-appressed, slightly secund when dry, oblong-lanceolate, lanceolate, or ovate-lanceolate, 2–4.3 mm; margins revolute from base to near apex, entire; apex obtuse, bluntly or narrowly acute, or gradually acuminate; basal laminal cells rectangular to elongate, grading to elliptic-quadrate, walls thick, nodose; distal cells 8–12 µm, 1-stratose, papillae 1–3 per cell, conic or 2-fid, low. Specialized asexual reproduction absent. Sexual condition gonioautoicous. Seta 1.5–4 mm. Capsule fully exserted, cylindric, 1.4–2.6 mm, smooth or sometimes slightly plicate distally; exothecial cells homogeneous; stomata superficial; peristome double; prostome absent or rudimentary; exostome teeth 16, erect, papillose; endostome segments 8, occasionally rudimentary, usually absent in open capsules, of 1 row of cells, smooth. Calyptra conic-oblong, smooth, sparsely hairy, hairs finely papillose. Spores 10–15 µm.
Habitat: Non-calcareous boulders in mesic, open coniferous forests, base of deciduous trees
Elevation: moderate to high elevations (500-3000 m)
Distribution
Alta., B.C., Man., N.W.T., Sask., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Mont., Nev., Oreg., S.Dak., Utah, Wash., Wyo., Europe, e Asia (Japan).
Discussion
Orthotrichum laevigatum is part of a complex group of intergrading taxa that generally are characterized by exserted, cylindric capsules with 16 erect or reflexed exostome teeth and a poorly developed endostome. Gametophytically, robust plants have stiff, erect leaves and large, blunt papillae. This complex is treated here as three species: O. holzingeri, a distinct, highly specialized species of seasonally wet rock with smooth exostome teeth, smooth laminal cells, smooth calyptra, and slightly ribbed capsule as distinguishing features; O. laevigatum, distinguished by smooth capsule and erect, papillose exostome teeth; and O. pylaisii, distinguished by slightly 8-ribbed capsule and reflexed-recurved exostome teeth.
Selected References
None.