bryopsida(n = noun.plant) class bryopsida, class musci, musci - true mosses: bryophytes having leafy rather than thalloid gametophytes: comprises orders Andreaeales; Bryales; Dicranales; Eubryales; Sphagnales;
is a kind of class
is a member of bryophyta, division bryophyta
the class of plants comprising the true mosses, having leafy rather than thalloid gametophytes; it comprises the orders