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Plant Families and Groups
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Groupings that include specific plants within larger families or divisions. |
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not used for indexing CATALOG: do not use |
Plant Families and Groups Categories.
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Angiosperms - Any member of the more than 250,000 species of flowering plants. Angiosperms are often differentiated from GYMNOSPERMS by their production of seeds within a closed chamber (OVARY, PLANT). The Angiosperms division is composed of two classes, the monocotyledons (Liliopsida) and dicotyledons (Magnoliopsida). |
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Bryophyta - A division of the plant kingdom. Bryophyta contains the subdivision, Musci, which contains the classes: Andreaeopsida, BRYOPSIDA, and SPHAGNOPSIDA. |
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Equisetum - The only living genus of the order Equisetales, class Equisetopsida (Sphenopsida), division Equisetophyta (Sphenophyta); distantly related to ferns. It grows in moist places. The hollow, jointed, ridged stems contain SILICATES. |
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Ferns - Seedless nonflowering plants of the class Filicinae. They reproduce by spores that appear as dots on the underside of feathery fronds. In earlier classifications the Pteridophyta included the club mosses, horsetails, ferns, and various fossil groups. In more recent classifications, pteridophytes and spermatophytes (seed-bearing plants) are in the division, or phylum, Tracheophyta. |
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Gymnosperms - Gymnosperms are a group of vascular plants whose seeds are not enclosed by a ripened ovary (fruit), in contrast to ANGIOSPERMS whose seeds are surrounded by an ovary wall. The seeds of many gymnosperms (literally, "naked seed") are borne in cones and are not visible. Taxonomists now recognize four distinct divisions of extant gymnospermous plants (CONIFEROPHYTA, CYCADOPHYTA, GINKGOPHYTA, and GNETOPHYTA). |
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Hepatophyta - A plant division. They are simple plants that lack vascular tissue and possess rudimentary rootlike organs (rhizoids). Like MOSSES, liverworts have alternation of generations between haploid gamete-bearing forms (gametophytes) and diploid spore-bearing forms (sporophytes). |
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Lycopodiaceae - The club-moss plant family of the order Lycopodiales, class Lycopodiopsida, division Lycopodiophyta, subkingdom Tracheobionta. The common name of clubmoss applies to several genera of this family. Despite the name this is not one of the true mosses (BRYOPSIDA ). |
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Selaginellaceae - A plant family of the order Selaginellales, class Lycopodiopsida, division Lycopodiophyta, subkingdon Tracheobionta. Members contain bilobetin. The rarely used common name of resurrection plant is mainly used with CRATEROSTIGMA. |
Plant Families and Groups Definitions and Terms
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