Difference between revisions of "Andreaea megistospora"
Bryologist 90: 18, figs. 9–23, 25–28. 1987,.
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|name=Andreaea megistospora var. epapillosa | |name=Andreaea megistospora var. epapillosa | ||
|authority=(B. M. Murray) H. A. Crum & L. E. Anderson | |authority=(B. M. Murray) H. A. Crum & L. E. Anderson | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Andreaea megistospora subsp. epapillosa | |name=Andreaea megistospora subsp. epapillosa | ||
|authority=B. M. Murray | |authority=B. M. Murray | ||
| + | |rank=subspecies | ||
}} | }} | ||
|hierarchy=Andreaeaceae;Andreaea;Andreaea megistospora | |hierarchy=Andreaeaceae;Andreaea;Andreaea megistospora | ||
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name=Andreaea megistospora | name=Andreaea megistospora | ||
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|authority=B. M. Murray | |authority=B. M. Murray | ||
|rank=species | |rank=species | ||
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|genus=Andreaea | |genus=Andreaea | ||
|species=Andreaea megistospora | |species=Andreaea megistospora | ||
Latest revision as of 21:24, 5 November 2020
Plants brown to black. Leaves erect-spreading or secund, subulate-lanceolate from an ovate base, widest in proximal half of leaf, apex symmetric; costa present, percurrent and sometimes filling the leaf apices, strong but narrow, bulging abaxially, usually reaching the leaf insertion; leaf margins entire or occasionally weakly crenulate; basal laminal cells quadrate to short-rectangular, marginal cells mostly rounded-quadrate, walls weakly pitted-sinuose; medial laminal cells rounded-quadrate, 1-stratose or 2-stratose in patches or completely, lumens rounded; laminal papillae smooth to papillose. Sexual condition cladautoicous or gonioatoicous; perichaetial leaves differentiated, convolute-sheathing. Spores (40–)50–90(–110) µm.
Habitat: Acidic rock
Elevation: low to moderate elevations
Distribution
B.C., Alaska, Wash., nw Europe.
Discussion
Andreaea megistospora is distinguished from the similar A. rothii by its large spores, and may simply prove to be a large form of the latter. The variety epapillosa is a minor variant commonly occurring in mixture with the typical variety, and doubtfully warrants a name.
Selected References
None.