Knowra Lycopodiopsida Lycopodiopsida Lycopodiopsida is a class of vascular plants that includes clubmosses, spike mosses, and quillworts. Its living members reproduce by spores and have microphylls, leaves with a single unbranched vein.
Microphyll : A small leaf with a single, unbranched vascular strand. Microphylls are characteristic leaves of living lycophytes, including this class.
Homosporous plant : A plant that produces one kind of spore, typically developing into a bisexual gametophyte. Most clubmosses produce one spore type, unlike the heterosporous lineages in the class.
Lycophyte : A vascular plant in the lineage that includes clubmosses, spikemosses, and quillworts. Lycopodiopsida is the class-level name for the living lycophyte lineage.
Euphyllophyte : A vascular plant belonging to the lineage that includes ferns and seed plants, rather than lycophytes. Euphyllophytes form the other major living vascular-plant lineage.
Sporophyte : The diploid, spore-producing stage in a plant's life cycle. The conspicuous plants in this class are sporophytes that produce spores.
Heterospory : The production of two distinct spore types that develop into male and female gametophytes. Quillworts and Selaginella produce separate microspores and megaspores.
Lepidodendron : An extinct genus of arborescent lycophytes that grew in Carboniferous coal forests. Its tree-sized relatives show how different some ancient members were from today's small plants.
Fern : A vascular plant that reproduces by spores and typically bears large, divided fronds. Ferns are spore-producing vascular plants, but their leaves differ from lycophyte microphylls.
Vascular plant : A plant with specialized tissues that transport water, minerals, and sugars. Lycopodiopsida belongs to the vascular plants, unlike mosses and liverworts.
Gametophyte : The haploid, gamete-producing stage in a plant's life cycle. Lycophyte spores grow into gametophytes that produce eggs and sperm.
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