Bull. Buffalo Soc. Nat. Sci. 32: 240. 1993,.
Distal laminal cells weakly convex superficially, adaxial surface of the costa not mammillose. Seta elongate. Capsule stegocarpous or occasionally cleistocarpous, cylindrical. Spores smooth or tuberculate (seldom also weakly papillose), 22–30 µm.
North Temperate Zone, disjunct to austral areas
Varieties 6 (3 in the flora).
|1||Capsules cleistocarpous (seldom operculum weakly differentiated but not dehiscent), spores both tuberculate and papillose, occasionally nearly smooth||Microbryum starckeanum var. fosbergii|
|1||Capsules stegocarpous, spores smooth or tuberculate||> 2|
|2||Peristome present, usually well-developed but truncate apically, leaves stoutly mucronate to short-awned||Microbryum starckeanum var. starckeanum|
|2||Peristome absent or rudimentary, leaves very shortly mucronate||Microbryum starckeanum var. brachyodus|