Crum, Howard Formerly, Herbarium, University of Michigan, Ann Arbor, Michigan.
- Diversity and phylogeny
- Links to Primary Literature
- Additional Readings
A division that consists of some 23,000 species of small and relatively simple plants commonly known as mosses, granite mosses, peat mosses, liverworts, and hornworts (see illustration). The bryophytes display a distinct alternation of sexual and asexual generations; the sexual gametophyte, with a haploid chromosome number, is the more diversified. The sporebearing, diploid sporophyte is reduced in size and structure, attached to the gametophyte, and partially or almost completely dependent on it.
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