Microbryum davallianum

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

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North America, Mexico, Europe, sw Asia, Africa, Pacific Islands (New Zealand).

Discussion

Varieties 3 (3 in the flora).

Selected References

None.

Lower Taxa

Microbryum davallianum var. commutatum, Microbryum davallianum var. conicum, Microbryum davallianum var. davallianum

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