Bryidae is an important subclass of
Bryopsida. It is common throughout the whole world. Members have a double
peristome with alternating tooth segments.
^Buck, William R. & Bernard Goffinet. 2000. "Morphology and classification of mosses", pages 71-123 in A. Jonathan Shaw & Bernard Goffinet (Eds.), Bryophyte Biology. (Cambridge: Cambridge University Press).
ISBN0-521-66097-1.