division Bryophyta
n : a division of nonflowering plants characterized by rhizoids
rather than true roots and having little or no organized
vascular tissue and showing alternation of generations
between gamete-bearing forms and spore-bearing forms;
comprises true mosses (Bryopsida) and liverworts
(Hepaticopsida) and hornworts (Anthoceropsida) [syn: Bryophyta]