Bryobrittonia Moss

Description

Stems erect, 25 mm. Leaves 3-6.5 mm; laminal cells 10-25 -m, walls thin; basal cells long-rectangular, 140 -m, walls weakly thickened, smooth; basal marginal cells weakly differentiated, longer than laminal cells. Seta 20-40 mm. Capsule ovoid-cylindric, 2-3 mm, ribbed, exothecial cells long-rectangular, walls weakly thickened; peristome teeth linear, 1 mm, papillose, erect when wet, somewhat recurved or twisted when dry; endostome almost as long as teeth. Operculum 2 mm. Calyptra campanulate, 4-8 mm, smooth. Spores 12-20 -m, papillose, brownish green.