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Encyclopedia > Peat moss
Sphagnum
Scientific classification
Kingdom: Plantae
Division: Bryophyta
Class: Bryopsida
Subclass: Sphagnidae
Order: Sphagnales
Family: Sphagnaceae
Genus: Sphagnum
Species

See text Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Divisions Green algae land plants (embryophytes) non-vascular embryophytes Hepatophyta - liverworts Anthocerophyta - hornworts Bryophyta - mosses vascular plants (tracheophytes) seedless vascular plants Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongue ferns seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering... Classes Musci Marchantiopsida (formerly Hepaticae) Anthocerotae The division Bryophyta comprises the nonvascular complex plants: complex plants without vascular tissue to circulate liquids around their tissues. ... This is an article about the plant. ...

Sphagnum is a genus of mosses commonly called peat moss due to its prevalence in peat bogs. Members of this genus can hold large quantities of water inside their cells; some species can hold up to 20 times their dry weight in water, which is why peat moss is commonly sold as a soil amendment. Peat moss can acidify its surroundings. See genus (mathematics) for the use of the term in mathematics. ... Subclasses Andreaeidae Sphagnidae Tetraphidae Polytrichidae Buxbaumiidae Bryidae Archidiidae Moss is a type of simple or non-vascular plant, of the class Musci, in the division Bryophyta, that have rhizoids instead of true roots. ... Peat in Lewis, Scotland Peat is an accumulation of partially decayed vegetable matter. ... Virgin boreal acid bogs at Browns Lake Bog, Ohio A bog is a wetland type that accumulates peat, a deposit of dead plant material. ... An acid (often represented by the generic formula AH) is typically a water-soluble, sour-tasting chemical compound. ...


Individual peat moss plants consist of a main stem with tightly arranged clusters of branch fascicles usually consisting of 2-3 spreading branches and 2-4 hanging branches. The branches are covered by ovate to lanceolate leaves named branch leaves. The top of the plant has compact clusters of young branches. Along the stem are scattered leaves of various shape named stem leaves. The shape varies according to species. The leaves consist of two kind of cells; small green living cells (chlorophyllose cells) and large clear structural dead cells (hyaline cells). The latter have a large water holding capacity.


Spores are released from specialized black, shiny capsules located at the tips of thin stalks. Sphagnum also reproduces by fragmentation. The term spore has several different meanings in biology. ...


Peat moss can be distinguished from other moss species by its unique branch clusters. The plant and stem color, the shape of the branch and stem leaves, and the shape of the green cells are characteristics used to identify peat moss to species.


Geographic distribution

Peat mosses have their main occurrences in the northern hemisphere where different species dominate the bottom layer of peat bogs and moist tundra areas. The northernmost populations of peat moss lie in the archipelago of Svalbard, arctic Norway at 81° N. New Zealand, Tasmania and southernmost Chile and Peru house the largest peat moss areas in the southern hemisphere, but containing comparatively few species. Many species are reported from mountainous, subtropical Brazil, but uncertainty exists regarding the specific status of many of them.


Uses

Sphagnum moss is used as a soil amendment, packing material, absorbent, and fuel. Historically it has been used as bandage material because of its acidic, antibacterial quality, and as a replacement for diapers. For the heavy metal band see Soil (band) Soil is the layer of minerals and organic matter, in thickness from centimetres to a metre or more, on the land surface. ... For the workstation, see SGI Fuel. ... Theres also a song called Bandages by the American alternative rock group Hot Hot Heat which appears on the 2002 album Make Up the Breakdown. ... An antiseptic is a substance that kills or prevents the growth of bacteria on the external surfaces of the body. ... This article is about the garment. ...


  Results from FactBites:
 
Peat - Wikipedia, the free encyclopedia (1462 words)
Peat deposits are found in many places around the world, notably in Russia, Ireland, Scotland, northern Germany and Scandinavia, and in North America principally in Canada, Michigan and the Florida Everglades.
It is composed mainly of peat moss or sphagnum, but may also include other marshland vegetation: trees, grasses, fungi, as well as other types of organic remains, such as insects, and animal (including human) corpses.
Peat layer growth and degree of decomposition (or humification) depends principally on its composition and on the degree of waterlogging.
Sphagnum Moss - Sphagnum andersonianum (615 words)
Peat moss is a dead form of Sphagnum moss that grows in the North American taiga.
Peat moss is mainly found in bogs in the North American taiga.
Peat moss is not endangered because it can grow in a variety of places and does not need to have a lot of water to survive.
  More results at FactBites »


 

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