thallophyta used only in former classifications: comprising what is now considered a heterogeneous assemblage of flowerless and seedless organisms: algae; bacteria; fungi; lichens
division tracheophyta,
tracheophyta in former classifications: comprising plants with a vascular system including ferns and fern allies as well as seed plants
bryophyta,
division bryophyta 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)
division pteridophyta,
pteridophyta containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta
division spermatophyta,
spermatophyta seed plants; comprises the Angiospermae (or Magnoliophyta) and Gymnospermae (or Gymnospermophyta); in some classification systems Spermatophyta is coordinate with Pteridophyta (spore producing plants having vascular tissue and roots) and Bryophyta (spore producing plants lacking vascular tissue and roots)
phanerogamae in former classification systems: one of two major plant divisions, including all seed-bearing plants; superseded by the division Spermatophyta
cryptogamia in former classification systems: one of two major plant divisions, including all plants that do not bear seeds: ferns, mosses, algae, fungi
