Difference between revisions of "Didymodon vinealis var. rubiginosus"
Cryptog. Bryol. Lichénol. 2: 417. 1981,.
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|name=Barbula rubiginosa | |name=Barbula rubiginosa | ||
|authority=Kindberg | |authority=Kindberg | ||
| + | |rank=species | ||
|publication_title=J. Linn. Soc., Bot. | |publication_title=J. Linn. Soc., Bot. | ||
|publication_place=8: 27, fig. 5. 1865 | |publication_place=8: 27, fig. 5. 1865 | ||
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|name=Barbula melanocarpa | |name=Barbula melanocarpa | ||
|authority=Kindberg | |authority=Kindberg | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Barbula subicmadophila | |name=Barbula subicmadophila | ||
|authority=R. H. Zander | |authority=R. H. Zander | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Didymodon occidentalis | |name=Didymodon occidentalis | ||
|authority=Cardot & Thériot | |authority=Cardot & Thériot | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Racomitrium cyclodictyon | |name=Racomitrium cyclodictyon | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Pottiaceae;Pottiaceae subfam. Barbuloideae;Didymodon;Didymodon vinealis;Didymodon vinealis var. rubiginosus | |hierarchy=Pottiaceae;Pottiaceae subfam. Barbuloideae;Didymodon;Didymodon vinealis;Didymodon vinealis var. rubiginosus | ||
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|habitat=Moderate elevations | |habitat=Moderate elevations | ||
|distribution=B.C.;Colo.;Idaho;Mont.;Oreg.;Wash. | |distribution=B.C.;Colo.;Idaho;Mont.;Oreg.;Wash. | ||
| − | |discussion=<p>Although the gametophyte of < | + | |discussion=<p>Although the gametophyte of <i></i>var.<i> rubiginosus</i> is little variable, having short-lanceolate to triangular leaves, it is well within the range of variation of the typical variety. It has been said to differ in a very narrow distal lamina that is often fragile or notched, or by large distal laminal cells, or by quadrate proximal cells, but these characters are insufficient to distinguish sterile specimens. The sporophyte is required for accurate identification, with the absence (not mere fragility) of the peristome as the critical character, following the species concept of W. C. Steere (1938b); the nearly straight opercular cells are diagnostic. Forms of <i></i>var.<i> vinealis</i> with weakly twisted opercular cells and weak, very fragile peristomes (e. g. California, Flowers 6561, COLO) may be taken as intermediates. B. H. Allen (1995) recently provided new American synonymy. The Mexican species <i>Didymodon</i> incrassatolimbatus Cardot should be looked for in the flora area; it differs by the broadly lanceolate, marginally 2-stratose leaves and well developed though short, red, erect peristome.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Didymodon vinealis var. rubiginosus | name=Didymodon vinealis var. rubiginosus | ||
| − | |||
|authority=(Mitten) R. H. Zander | |authority=(Mitten) R. H. Zander | ||
|rank=variety | |rank=variety | ||
| Line 61: | Line 65: | ||
|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/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V27/V27_792.xml |
|subfamily=Pottiaceae subfam. Barbuloideae | |subfamily=Pottiaceae subfam. Barbuloideae | ||
|genus=Didymodon | |genus=Didymodon | ||
Revision as of 21:05, 16 December 2019
Capsule with peristome absent; operculum narrowly conic, cells straight or nearly so.
Phenology: Capsules mature spring.
Habitat: Moderate elevations
Distribution
B.C., Colo., Idaho, Mont., Oreg., Wash.
Discussion
Although the gametophyte of var. rubiginosus is little variable, having short-lanceolate to triangular leaves, it is well within the range of variation of the typical variety. It has been said to differ in a very narrow distal lamina that is often fragile or notched, or by large distal laminal cells, or by quadrate proximal cells, but these characters are insufficient to distinguish sterile specimens. The sporophyte is required for accurate identification, with the absence (not mere fragility) of the peristome as the critical character, following the species concept of W. C. Steere (1938b); the nearly straight opercular cells are diagnostic. Forms of var. vinealis with weakly twisted opercular cells and weak, very fragile peristomes (e. g. California, Flowers 6561, COLO) may be taken as intermediates. B. H. Allen (1995) recently provided new American synonymy. The Mexican species Didymodon incrassatolimbatus Cardot should be looked for in the flora area; it differs by the broadly lanceolate, marginally 2-stratose leaves and well developed though short, red, erect peristome.
Selected References
None.