Difference between revisions of "Microbryum davallianum var. davallianum"
Synonyms: Pottia starckeana subsp. minutulum (Schwägrichen) D. P. Chamberlain
Treatment appears in FNA Volume 27. Treatment on page 630.
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|accepted_name=Microbryum davallianum var. davallianum | |accepted_name=Microbryum davallianum var. davallianum | ||
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|name=Pottia starckeana subsp. minutulum | |name=Pottia starckeana subsp. minutulum | ||
|authority=(Schwägrichen) D. P. Chamberlain | |authority=(Schwägrichen) D. P. Chamberlain | ||
| + | |rank=subspecies | ||
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|hierarchy=Pottiaceae;Pottiaceae subfam. Pottioideae;Microbryum;Microbryum davallianum;Microbryum davallianum var. davallianum | |hierarchy=Pottiaceae;Pottiaceae subfam. Pottioideae;Microbryum;Microbryum davallianum;Microbryum davallianum var. davallianum | ||
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name=Microbryum davallianum var. davallianum | name=Microbryum davallianum var. davallianum | ||
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|subfamily=Pottiaceae subfam. Pottioideae | |subfamily=Pottiaceae subfam. Pottioideae | ||
|genus=Microbryum | |genus=Microbryum | ||
Latest revision as of 22:29, 5 November 2020
Capsule commonly wide-mouthed when dehisced, with a single row of thickened cells below mouth; peristome absent. Spores spiculose (finely spinose) and large (31–39 µm.).
Phenology: Capsules mature late summer to early winter (Sept-Nov).
Habitat: Bare soil, vacant lots, fields
Elevation: low to moderate elevations
Distribution
Ont., Mich., N.Y., Europe, sw Asia, n Africa, Pacific Islands (New Zealand).
Discussion
In var. davallianum the spines of the spores are 2–2.5 µm. Distal laminal papillae are hollow or occasionally solid, ca. 2 per lumen, usually simple but in some specimens (e.g., Ontario, Bruce County, C. Williams 1200, CANM) mostly 2-fid and hollow (with a distinct saddle between the projections) and distinctly C-shaped in optical section.
Selected References
None.
Lower Taxa
None.