club moss

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Related to club moss: Lycopodium

club moss,

name generally used for the living species of the class Lycopodiopsida, a primitive subdivision of vascular plants. The Lycopodiopsida were a dominant plant group in the Carboniferous period, when they attained the size of trees, and contributed to the coal deposits then being formed. They are now considered relictual. Although they resemble the mosses, they are considered to be evolutionarily more advanced because they are vascular, that is they have specialized fluid-conducting tissues. Club mosses are usually creeping or epiphytic and often inhabit moist places, especially in tropical and subtropical forests. They reproduce by means of spores, either clustered into small cones or borne in the axils of the small scalelike leaves. The principal genera are Lycopodium and Selaginella. Some species of Lycopodium are called ground pine or creeping cedar, especially those that resemble miniature hemlocks with flattened fan-shaped branches, and are often used for Christmas decorations. The spores of L. clavatum are gathered and sold as lycopodium powder, or vegetable sulfur, a highly inflammable yellow powder sometimes used for pharmaceutical purposes (e.g., as an absorptive powder) and in fireworks. Selaginella species, often incorrectly called Lycopodium, are occasionally grown as ornamentals. One of the best known is a resurrection plantresurrection plant,
name for several plants, usually of arid regions, that may apparently be brought back to life after they are dead. In reality they have hygroscopic qualities which cause them to curl up when dry and to unfold when moist.
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. Club mosses constitute the division LycopodiophytaLycopodiophyta
, division of the plant kingdom consisting of the organisms commonly called club mosses and quillworts. As in other vascular plants, the sporophyte, or spore-producing phase, is the conspicuous generation, and the gametophyte, or gamete-producing phase, is minute.
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, class Lycopodiopsida.

club moss

[′kləb ‚mȯs]
The common name for members of the class Lycopodiatae.
References in periodicals archive ?
Chinese club moss contains a number of alkaloids including Huperzine A and Huperzine B--the two most active compounds.
Extracts of the club moss Huperzia serrata have long been used in traditional Chinese medicine as a remedy for various ailments including inflammation and schizophrenia.
The final had plenty of drama but ultimate disappointment for the young Boro side, who lost out to Manchester-based club Moss Side by 7-6 after penalties.
Over that same period, the concentration of an ultraviolet-absorbing pigment in the spores of a particular club moss has more than tripled.
The new County chief claims he wants 16 players out of Edgeley Park and has told Wiss's former Norwegian club Moss they can have him on a free.
The first model, on view at NORCAT, is constructed of metal framing and sheet metal which is matted on three sides with vegetation common to the Sudbury area including club moss, bog laurel, native grasses, cedar and tamarack.
Aberdeen, meanwhile, have accused Norwegian club Moss of reneging on the deal to bring Kjell Oloffson to Pittodrie.
The small yellow lady's slipper orchid and Southern club moss were two species of concern identified in the area being managed by the Conservancy.
Huperzine A is a naturally occurring alkaloid found from the club moss Huperzia serrata that has been used for decades in China as a prescription medication for the treatment of dementia.

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