prokaryotic organisms sometimes considered a class or phylum or subkingdom; coextensive with the Cyanophyceae: cyanobacteria (blue-green algae) (noun.animal)
mostly freshwater eukaryotic algae having the chlorophyll masked by brown or yellow pigment; yellow-green and golden-brown algae and diatoms: Xanthoph more..mostly freshwater eukaryotic algae having the chlorophyll masked by brown or yellow pigment; yellow-green and golden-brown algae and diatoms: Xanthophyceae, Chrysophyceae, Bacillariophyceae; some classification systems superseded or subsumed by Heterokontophyta(noun.animal)
large division of chiefly freshwater eukaryotic algae that possess chlorophyll a and b, store food as starch, and cellulose cell walls; classes Chloro more..large division of chiefly freshwater eukaryotic algae that possess chlorophyll a and b, store food as starch, and cellulose cell walls; classes Chlorophyceae, Ulvophyceae, and Charophyceae; obviously ancestral to land plants(noun.animal)
a group of vertebrates comprising both cartilaginous and bony fishes and sometimes including the jawless vertebrates; not used technically (noun.animal)
used only in former classifications: comprising what is now considered a heterogeneous assemblage of flowerless and seedless organisms: algae; bacteri more..used only in former classifications: comprising what is now considered a heterogeneous assemblage of flowerless and seedless organisms: algae; bacteria; fungi; lichens(noun.plant)
a division of nonflowering plants characterized by rhizoids rather than true roots and having little or no organized vascular tissue and showing alter more..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)(noun.plant)
containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdi more..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(noun.plant)
seed plants; comprises the Angiospermae (or Magnoliophyta) and Gymnospermae (or Gymnospermophyta); in some classification systems Spermatophyta is coo more..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)(noun.plant)
in former classification systems: one of two major plant divisions, including all seed-bearing plants; superseded by the division Spermatophyta (noun.plant)
in former classification systems: one of two major plant divisions, including all plants that do not bear seeds: ferns, mosses, algae, fungi (noun.plant)
used in former classifications to include all ferns and flowering plants and divided into the three classes Filicinae and Gymnospermae and Angiosperma more..used in former classifications to include all ferns and flowering plants and divided into the three classes Filicinae and Gymnospermae and Angiospermae(noun.plant)
slime molds; organisms having a noncellular and multinucleate creeping vegetative phase and a propagative spore-producing stage: comprises Myxomycetes more..slime molds; organisms having a noncellular and multinucleate creeping vegetative phase and a propagative spore-producing stage: comprises Myxomycetes and Acrasiomycetes; in some classifications placed in the kingdom Protoctista(noun.plant)
comprising the lichens which grow symbiotically with algae; sometimes treated as an independent group more or less coordinate with algae and fungi (noun.plant)
comprises fungi bearing the spores on a basidium; includes Gasteromycetes (puffballs) and Tiliomycetes comprising the orders Ustilaginales (smuts) and more..comprises fungi bearing the spores on a basidium; includes Gasteromycetes (puffballs) and Tiliomycetes comprising the orders Ustilaginales (smuts) and Uredinales (rusts) and Hymenomycetes (mushrooms, toadstools, agarics and bracket fungi); in some classification systems considered a division of kingdom Fungi(noun.plant)
a large subdivision of Eumycota including Hemiascomycetes and Plectomycetes and Pyrenomycetes and Discomycetes; sac fungi; in some classification syst more..a large subdivision of Eumycota including Hemiascomycetes and Plectomycetes and Pyrenomycetes and Discomycetes; sac fungi; in some classification systems considered a division of the kingdom Fungi(noun.plant)
(cricket) the division of play during which six balls are bowled at the batsman by one player from the other team from the same end of the pitch (noun.time)
the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart(noun.act)