Difference between revisions of "Microbryum davallianum"
Bull. Buffalo Soc. Nat. Sci. 32: 240. 1993,.
Basionym: Gymnostomum davallianum Smith Ann. Bot. (König & Sims) 1: 577. 1805
Synonyms: Pottia davalliana (Smith) C. Jensen
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Revision as of 22:37, 27 May 2020
Distal laminal cells weakly convex superficially, adaxial surface of costa not mammillose. Seta elongate. Capsule cylindrical, stegocarpous but never cleistocarpous. Spores granulose, low-papillose or spiculose, large, 28–39 µm.
Distribution
North America, Mexico, Europe, sw Asia, Africa, Pacific Islands (New Zealand).
Discussion
Varieties 3 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Capsules commonly wide-mouthed when dehisced, with a single row of thickened cells below mouth, peristome absent, spores spiculose, 31-39 µm. | Microbryum davallianum var. davallianum |
| 1 | Capsules narrow mouthed when dehisced, with usually 2 or more rows of thickened cells below mouth, peristome variously absent or present, spores merely papillose, 27-34 µm | > 2 |
| 2 | Peristome well developed | Microbryum davallianum var. commutatum |
| 2 | Peristome rudimentary or absent | Microbryum davallianum var. conicum |
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