TaiBIF | Search | All Living Things

Marasmius oreades (Bolton) Fr.
Life   Fungi   Basidiomycota   Marasmiaceae   Marasmius

Marasmius oreades
© Copyright Malcolm Storey 2011-2118 · 3
Marasmius oreades

Click on map for details about points.

80x5 - 240x3 - 240x4 - 320x1 - 320x2 - 320x3 - 640x1 - 640x2
Set display option above.
Click on images to enlarge.
Marasmius oreades
© Copyright Malcolm Storey 2011-2118 · 3
Marasmius oreades
Marasmius oreades
© Copyright Malcolm Storey 2011-2118 · 3
Marasmius oreades

Marasmius oreades
© Copyright Malcolm Storey 2011-2118 · 3
Marasmius oreades
Marasmius oreades
© Copyright Malcolm Storey 2011-2118 · 3
Marasmius oreades

Hosts · map
FamilyScientific name @ source (records)
Poaceae  Poa pratensis @ BPI (1)
_  Substrate @ BPI (100)

go to Discover Life's Facebook group

Following modified from MushroomObserver.org
   Top | See original

&pull 20q v5.145 20180528: Error 301 Moved Permanently http://mushroomobserver.org/name/show_name/167

Following modified from MykoWeb
   Top | See original

California Fungi—Marasmius oreades Marasmius oreades
(Photo: © Fred Stevens)

Marasmius oreades (Bolt.: Fries) Fries
Epicr. Myc. 375. 1838.

Common Name: fairy ring mushroom

  • Pileus

    Cap 1.5-4.0 cm broad, rounded, becoming campanulate (bell- shaped), finally convex to nearly plane, typically with a broad umbo; margin striate when moist, sometimes upturned in age; surface dry, smooth, light cinnamon-brown to buff-brown when young, fading in age to pale-buff or cream; flesh thick, reviving after being dried; odor and taste mild.

  • Lamellae

    Gills adnexed to nearly free, subdistant, interspersed with shorter lamellae and intervenose; cream to buff-colored.

  • Stipe

    Stipe 2-6 cm tall, 2-5 mm thick, equal, tough, cream to buff above, the base usually somewhat darker and pruinose; veil absent.

  • Spores

    Spore 7-8.5 x 4-5.5 µm, elliptical, inequalateral, apiculate (pointed at the end), smooth, nonamyloid; spore print white to pale-cream.

  • Habitat

    Forming arcs or rings in lawns and pastures, spring, summer and fall.

  • Edibility

    Edible Edible and excellent, but the tough, fibrous stipes should be discarded. Caution is advised as there are toxic lookalikes (see below).

  • Comments

    Marasmius oreades is distinguished by a smooth, cream to buff-colored, umbonate cap, well spaced, adnexed to nearly free gills, tough, wiry stipe, and white spores. It get its common name from the distinctive circular fruitings it forms in grassy areas. Fairy rings of course are not unique to Marasmius oreades . In our area, other common species which form rings or arcs include Clitocybe nuda (Blewit), Agaricus campestris (Field Mushroom), A. arvensis (Horse Mushroom), Stropharia ambigua and several species of coral mushrooms. Like many Marasmius species, dried specimens of the Fairy Ring mushroom have the unusual ability to revive when moistened. A toxic species that somewhat resembles Marasmius oreades , and which can also form fairy rings, is Clitocybe dealbata . It has a white to greyish-white, umbo-less cap, closely-spaced, slightly decurrent gills, but is uncommon in the S. F. Bay Area. Some species of Inocybe could also be mistaken for the Fairy Ring mushroom, but all have brown spores and if found in grass are usually near trees.

  • References

    Antonín, V. & Noordeloos, M.E. (2010). A monograph of marasmioid and collybioid fungi in Europe. IHW-Verlag: Eching, Germany. 480 p.
    Breitenbach, J. & Kränzlin, F . (1991). Fungi of Switzerland. Volume 3: Boletes and Agarics (1st Part). Strobilomycetaceae, Boletaceae, Paxillaceae, Gomphidiaceae, Hygrophoraceae, Tricholomataceae, Polyporaceae (lamellate). Verlag Mykologia: Luzern, Switzerland. 361 p.
    Desjardin, Dennis E. (1987). The Agaricales (Gilled Fungi) of California. 7. Tricholomataceae I. Marasmioid Fungi. Mad River Press: Eureka, CA. 100 p.
    Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
    Smith, A.H. (1949). Mushrooms in their Natural Habitats. Sawyer's Inc: Portland, OR. 626 p.

  • Other Descriptions and Photos Main Photo
    • Urban Mushrooms: Marasmius oreades (D & CP)
    • Wikipedia: Scotch bonnet mushroom (D & CP)
    • Tom Volk's Fungus of the Month: Marasmius oreades (D & CP)
    • Pilze, Pilze, Pilze: Marasmius oreades (CP)
    • Arora (1986): p. 208 (D), plates 38, 47 (CP)
    • Arora (1991): p. 51 (D & CP)
    • Fischer & Bessette: p. 50 (D), p. 51 (CP)
    • Jordan: p. 166 (D & CP)
    • Lincoff: p. 772 (D), plates 17, 18 (CP)
    • McKenny et al. : p. 87 (D & CP)
    • Miller: sp. 112 (D & CP)
    • Phillips: p. 74 (D & CP)
    • Smith: sp. 105 (D & CP)
    • Smith & Weber: sp. 118 (D & CP)

    (D=Description; I=Illustration; P=Photo; CP=Color Photo)

The Fungi of California
Copyright © 1996-2018 Michael Wood & Fred Stevens
A MykoWeb Page

Following modified from Taiwan Biodiversity National Information Network
   Top | See original

Kingdom Fungi  
 Phylum Basidiomycota  
 Class Basidiomycetes  
 Order Agaricales  
 Family Marasmiaceae  
 Genus Marasmius  
  Marasmius oreades    Fr. 
Provider: Chou, Wen-Neng 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Agaricus coriaceus Agaricus oreades Agaricus pratensis Agaricus pseudomouceron Collybia oreades Scorteus oreades   details
Citation: Tu, C. C. et al: Taiwanh Mushrooms 5(2) :94, 1981
Name Code: 143263
Suggested Link    Discover Life  
User Response:   upload Comments    upload Photo
Previous Page       Home Page

Updated: 2020-06-05 04:31:47 gmt
TaiBIF | Search | All Living Things | Top
© Designed by The Polistes Corporation