in P. Bruch and W. P. Schimper, Bryol. Europ.6: 155, plate 635. 1855,
Habitat: Rock, alluvium, edges of snow melt areas
Elevation: low to high elevations
Andreaea blyttii is distinguished by leaves with long, narrow subula, nearly filled with the strong costa, and rectangular basal cells, and small spores. Collections commonly lack sporophytes. Distal laminal cells may be minutely mammillose abaxially, and the leaf margins are thus crenulate.