Pottiaceae subfam. Barbuloideae
Beih. Bot. Centralbl. 20(2): 612. 1933,.
Plants green to tan. Stem central strand and sclerodermis usually present, hyalodermis rare. Leaves usually broadly lanceolate to narrowly elliptical, apex blunt to acute, margins recurved basally; distal laminal cells if 2-stratose stacked directly over one another, walls smooth or papillose, KOH yellow or red; costa with or without a differentiated abaxial epidermis; gemmae occasionally present, usually clavate. Peristome usually present.
Genera 33 (16 in the flora).
Newton, M. E. 1983. Natural variation and diagnostic characters in Gymnostomum, Anoectangium and Molendoa. J. Bryol. 12: 343–349.
Zander, R. H. 1979. Notes on Barbula and Pseudocrossidium (Bryopsida) in North America and an annotated key to the taxa. Phytologia 44: 177–214.