Difference between revisions of "Dicranodontium asperulum"
in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 208[I,3]: 336. 1901,.
FNA>Volume Importer |
FNA>Volume Importer |
||
| Line 13: | Line 13: | ||
|name=Campylopus virginicus | |name=Campylopus virginicus | ||
|authority=(Austin) Lesquereux & James | |authority=(Austin) Lesquereux & James | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Dicranum virginicum | |name=Dicranum virginicum | ||
|authority=Austin | |authority=Austin | ||
| Line 30: | Line 30: | ||
|elevation=0-1200 m | |elevation=0-1200 m | ||
|distribution=B.C.;Alaska;Ga.;Ky.;N.C.;Tenn.;Va.;W.Va.;Europe;Asia. | |distribution=B.C.;Alaska;Ga.;Ky.;N.C.;Tenn.;Va.;W.Va.;Europe;Asia. | ||
| − | |discussion=<p>Sporophytes of Dicranodontium asperulum were seen in North America only in one British Columbia specimen. The wide-spreading leaves, standing out from the stem at 45° or more when wet, and the serrate to serrulate shoulders of the leaf bases make D. asperulum the most distinctive North American species of the genus. The leaves of the other species are appressed or weakly spreading when wet, with entire bases.</p> | + | |discussion=<p>Sporophytes of <i>Dicranodontium asperulum</i> were seen in North America only in one British Columbia specimen. The wide-spreading leaves, standing out from the stem at 45° or more when wet, and the serrate to serrulate shoulders of the leaf bases make <i>D. asperulum</i> the most distinctive North American species of the genus. The leaves of the other species are appressed or weakly spreading when wet, with entire bases.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 53: | Line 53: | ||
|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |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/V27/V27_561.xml |
|genus=Dicranodontium | |genus=Dicranodontium | ||
|species=Dicranodontium asperulum | |species=Dicranodontium asperulum | ||
Revision as of 16:55, 18 September 2019
Plants brown proximally, yellowish to dark green distally, dull to glossy, in loose tufts. Stems 1–6(–8) cm, radiculose proximally with whitish to reddish brown rhizoids. Leaves erect-patent, flexuose, spreading at ca. 45º or more when wet, occasionally falcate-secund at stem apices, 3–8 mm, often deciduous, abruptly narrowed from an ovate base into a setaceous subula, subtubulose proximally, channeled distally, margins serrulate to serrate at shoulders, usually strongly serrate distally, apex acute; costa distinct, occupying ca. 1/3 of leaf base; cells not thick-walled or pitted, distal cells linear, 24–56 × 5–6 µm, basal cells broadly rectangular, hyaline, ca. 9 µm wide, alar cells sometimes forming indistinct auricles, hyaline. Seta 15–20 mm, erect-sinuose. Capsule 1.5–2 mm; operculum not seen, reportedly shorter than the capsule. Spores 9–14 µm.
Habitat: Damp, shaded, acidic cliff faces and cliff shelves, occasionally on earth of overturned tree roots
Elevation: 0-1200 m
Distribution
B.C., Alaska, Ga., Ky., N.C., Tenn., Va., W.Va., Europe, Asia.
Discussion
Sporophytes of Dicranodontium asperulum were seen in North America only in one British Columbia specimen. The wide-spreading leaves, standing out from the stem at 45° or more when wet, and the serrate to serrulate shoulders of the leaf bases make D. asperulum the most distinctive North American species of the genus. The leaves of the other species are appressed or weakly spreading when wet, with entire bases.
Selected References
None.