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Encyclopedia > Lycopodiophyta
?Lycopodiophyta
Lycopodiella cernua
Lycopodiella cernua
Scientific classification
Kingdom: Plantae
Division: Lycopodiophyta
Classes

Lycopodiopsida - clubmosses
Selaginellopsida - spikemosses
Isoetopsida - quillworts Lycopodiella cernua (L.) Pic. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Divisions Green algae Chlorophyta Charophyta Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) †Rhyniophyta - rhyniophytes †Zosterophyllophyta - zosterophylls Lycopodiophyta - clubmosses †Trimerophytophyta - trimerophytes Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta... Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... Families Lycopodiaceae Huperziaceae The Class Lycopodiopsida includes the clubmosses. ... Species See text Spikemoss refers to any plant of the genus Selaginella in the family Selaginellaceae. ... Species See text Quillworts are plants of the genus Isoetes in the class Isoetopsida and order Isoetales. ...

The Division Lycopodiophyta (sometimes called Lycophyta) is a tracheophyte subdivision of the Kingdom Plantae. It is the oldest extant (living) vascular plant division at around 420 million years old, and includes some of the most "primitive" extant species. These species reproduce by shedding spores and have macroscopic alternation of generations, although some are homosporous while others are heterosporous. They differ from all other vascular plants in having microphylls, leaves that have only a single vascular trace (vein) rather than the much more complex megaphylls found in ferns and seed plants. Divisions Non-seed-bearing plants Equisetophyta Lycopodiophyta Psilotophyta Pteridophyta Superdivision Spermatophyta Pinophyta Cycadophyta Ginkgophyta Gnetophyta Magnoliophyta The vascular plants are plants in the Kingdom Plantae (also called Viridiplantae) that have specialized tissues for conducting water. ... Divisions Green algae Chlorophyta Charophyta Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) †Rhyniophyta - rhyniophytes †Zosterophyllophyta - zosterophylls Lycopodiophyta - clubmosses †Trimerophytophyta - trimerophytes Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta... Spores produced in a sporic life cycle. ... Sporic or diplohaplontic life cycle. ... In plants, a characteristic where the plant produces only one kind of spore. ... Heterosporous plants, such as spikemosses, quillworts, and some aquatic ferns produce spores of two different sizes: the larger spore effectively functioning as a female spore and the smaller functionally male. ... Microphylls are photosynthetic flaps of plant tissue with a solitary, unbranched vein. ... Classes Marattiopsida Osmundopsida Gleicheniopsida Pteridopsida A fern, or pteridophyte, is any one of a group of about 20,000 species of plants classified in the Division Pteridophyta, formerly known as Filicophyta. ... The spermatophytes (also known as phanerogams) comprise those plants that produce seeds. ...


There are around 1,200 living species divided into three main groups within the Lycopodiophyta, sometimes separated at the level of order and sometimes at the level of class. These are subdivided at the class level here:

The members of this division have a long evolutionary history, and fossils are abundant worldwide, especially in coal deposits. In fact, most known genera are extinct. The Silurian species Baragwanathia longifolia represents the earliest identifable Lycopodiophyta, while some Cooksonia seem to be related. Families Lycopodiaceae Huperziaceae The Class Lycopodiopsida includes the clubmosses. ... Species See text Spikemoss refers to any plant of the genus Selaginella in the family Selaginellaceae. ... Species See text Quillworts are plants of the genus Isoetes in the class Isoetopsida and order Isoetales. ... An ammonite fossil Fossils (from Latin fossus, literally having been dug up) are the mineralized or otherwise preserved remains or traces (such as footprints) of animals, plants, and other organisms. ... Main article deposit (bank) A deposit is a specific sum of money taken and held on account, by a bank as a service provided for its clients. ... In biology, a genus (plural genera) is a taxonomic grouping. ... The Dodo, shown here in illustration, is an often-cited[1] example of extinction. ... Binomial name Baragwanathia longifolia Lang et Cookson Baragwanathia longifolia Lang & Cookson 1935 is an ancient and extinct species of vascular plant. ... Artists impression of Cooksonia Cooksonia are an extinct genus of primitive land plants. ...


The Lycopodiophyta are one of several classes of plants that expanded onto land during the Silurian and Devonian periods. Like all explorers it found new hazards that demanded new solutions. While the ocean currents blended oxygen, water and nutrients into a soup, the land had a layered structure with water and minerals in the soil and oxygen and light in the air. The intense sunlight presented a greater risk of genetic damage. Without water, pervasive desiccation became a possibility, and more structural support was required to resist gravity. The Silurian is a major division of the geologic timescale that extends from the end of the Ordovician period, about 443. ... Disambiguation: Devonian is sometimes used to refer to the Southwestern Brythonic language, and the people of the county of Devon are sometimes referred to as Devonians The Devonian is a geologic period of the Paleozoic era. ... General Name, Symbol, Number oxygen, O, 8 Chemical series Nonmetals, chalcogens Group, Period, Block 16, 2, p Appearance colorless (gas) very pale blue (liquid) Atomic mass 15. ... Water is a tasteless, odorless substance that is essential to all known forms of life and is known as the universal solvent. ... Minerals are natural compounds formed through geological processes. ... Loess field in Germany Soil horizons are formed by combined biological, chemical and physical alterations. ... Genetics (from the Greek genno γεννώ= give birth) is the science of genes, heredity, and the variation of organisms. ... Gravity is a force of attraction that acts between bodies that have mass. ...

Lycopodiophyta spores can be used in pyrotechnics
Lycopodiophyta spores can be used in pyrotechnics

Many adaptations of the Lycopodiophyta can be explained as a response to these conditions. They continued the development and specialization of roots to extract nutrients from the soil and developed 'leaves' for photosynthesis and gas exchange, using a stem for transport. A waxy cuticle helped retain moisture, and stoma allowed respiration. The vulnerable meiotic gametophyte is protected from radiation by its reduced size and often by the use of subterranean mycorhiza for its energy source instead of photosynthesis. Club-mosses are homosporous, but spike-mosses and quillworts are heterosporous. In heterospores the female spores are larger than the male because they store food for the new generation. Sporangia are produced at the base of 'leaves'. Image File history File linksMetadata Download high-resolution version (600x800, 153 KB) Published by flickr user everyones idle. Available from http://www. ... Image File history File linksMetadata Download high-resolution version (600x800, 153 KB) Published by flickr user everyones idle. Available from http://www. ... A nutrient is either element or compound necessary for or contributing to an organisms metabolism, growth, or other functioning. ... Loess field in Germany Soil horizons are formed by combined biological, chemical and physical alterations. ... The leaf is the primary site of photosynthesis in plants. ... Cellular respiration is the process in which the chemical bonds of energy-rich molecules such as glucose are converted into energy usable for life processes. ... // Overview A gametophyte is the haploidor possibly diploid structure or phase of life of a sexually-reproducing plant. ... Radiation in Physics is the process of emitting energy in the form of waves or particles. ...


The leaves of lycophytes are called 'enations' and are not true leaves as found in modern plants. How enations came about is uncertain: some botanists think they are simple outgrowths of the stem that became vascularised; others think that they are caused by sterilisation of sporangia.


During the Carboniferous period, tree-like Lycopodiophyta (such as Lepidodendron) formed huge forests and dominated the land. Unlike modern trees, leaves grew out of the entire surface of the trunk and branches, but would fall off as the plant grew, leaving only a small cluster of leaves at the top. Their remains formed many fossil coal deposits. In Fossil Park, Glasgow, Scotland, fossilized Lycopodiophyta trees can be found in sandstone. The trees are marked with diamond-shaped scars where they once had leaves. The Carboniferous is a major division of the geologic timescale that extends from the end of the Devonian period, about 359. ... Species See text. ... Coal Coal (IPA: ) is a fossil fuel extracted from the ground by underground mining or open-pit mining (surface mining). ... For other uses, see Glasgow (disambiguation). ... Motto: (Latin for No one provokes me with impunity)1. ... Red sandstone interior of Lower Antelope Canyon, Arizona, worn smooth due to erosion by flash flooding over millions of years Sandstone is a sedimentary rock composed mainly of sand-size mineral or rock grains. ...


The spores of Lycopodiophyta are highly flammable and so have been used in fireworks. Currently, huperzine, a chemical isolated from a Chinese clubmoss, is under investigation as a possible treatment for Alzheimer's disease. The Sydney Harbour Bridge and the Sydney Opera House illuminated under New Years Eve Fireworks 2005 Fireworks in Kraków, Poland for the 100th anniversary of Wisła Kraków FC. A fireworks event (also called a fireworks display or fireworks show) is a spectacular display of the effects... Huperzine A, is a naturally occurring sesquiterpene alkaloid found in the extracts of the firmoss Huperzia serrata. ...


External links

Wikispecies has information related to:
Lycopodiophyta
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Wikibooks Dichotomous Key has more about this subject:
Lycopodiophyta
  • [1]
  • Fossil Groves
  • More About Lycopsids
  • Paleo Plants
  • The First Land Plants

  Results from FactBites:
 
Lycopodiophyta: Definition and Much More from Answers.com (878 words)
Lycopodiophyta (lī'kōpō'dēŏf'ətə), division of the plant kingdom consisting of the organisms commonly called club mosses and quillworts.
The Lycopodiophyta are one of several classes of plants that expanded onto land during the Silurian and Devonian periods.
The spores of Lycopodiophyta are highly flammable and so have been used in fireworks.
Lycopodiophyta :: Plantae : Gourt (220 words)
There are three main groups within the Lycopodiophyta, sometimes separated at the level of order and sometimes at the level of class.
Introduction to the Lycophyta - An introduction to club mosses and scale trees, their life history, morphology, ecology, systematics and fossil history.
Lycopodiophyta - Find out about this ancient plant division and its classes.
  More results at FactBites »

 
 

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