Marasmius

Not to be confused with Marasmus.

Marasmius
Marasmius elegans
Scientific classification Edit this classification
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Marasmiaceae
Genus: Marasmius
Fr. (1836)
Type species
Marasmius rotula
(Scop.) Fr. (1838)
Marasmius
Mycological characteristics
Gills on hymenium
Cap is convex
Hymenium is adnate
Stipe is bare
Spore print is white
Ecology is saprotrophic

Marasmius is a genus of mushroom-forming fungi in the family Marasmiaceae. It contains about 500 species of agarics,[1] of which a few, such as Marasmius oreades, are edible. However, most members of this genus are small, unimpressive brown mushrooms. Their humble appearance contributes to their not being readily distinguishable to non-specialists, and they are therefore seldom collected by mushroom hunters. Several of the species are known to grow in the characteristic fairy ring pattern.

Marasmius rotula

The author of the genus was Elias Magnus Fries,[2] who in 1838[3] classified white-spored agarics having a tough central stipe in this taxon if they were marcescent, i.e. they could dry out but later revive when moistened. For Fries, marcescence—by contrast with the "putrescent" (decomposing) nature of most mushrooms—was an important character for classification, which he used to separate this group from genus Collybia (which has now been split into many newer genera). The name Marasmius itself comes from the Greek word marasmos, meaning "drying out; withering". Modern mycologists no longer consider the marcescence/putrescence distinction a reliable criterion for taxonomy, but Fries's definition of the genus is still roughly applicable.

Species

Below is a list of more prominent species (for a complete list see List of Marasmius species). Note that some well-known former members of Marasmius, such as M. alliaceus, have been moved into the new genus Mycetinis; a few others have been reclassified as Rhizomarasmius or Gloiocephala. Former M. androsaceus is now considered to belong to genus Gymnopus.

See also

References

  1. ^ Kirk PM, Cannon PF, Minter DW, Stalpers JA (2008). Dictionary of the Fungi (10th ed.). Wallingford, UK: CABI. p. 401. ISBN 978-0-85199-826-8.
  2. ^ See record in Index Fungorum
  3. ^ E. M. Fries Epicrisis systematis mycologici (1838) Uppsala: Typographia Academica
  4. ^ Twilley, Nicola "The Year in Fungi", The New Yorker, New York, 20 December 2015. Retrieved on 21 December 2015.
  5. ^ Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 73. ISBN 978-1-55407-651-2.
  • Wikispecies logo Data related to Marasmius at Wikispecies
  • Genus Marasmius at Mushroom Expert.com

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