Gyromitra gigas

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This article is about the fungus. For the brain of a calf, see Calf's brains. For the construction term, see Bullnose.
Snow Morel
Gyromitra gigas 85397.jpg
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Ascomycetes
Order: Pezizales
Family: Discinaceae
Genus: Gyromitra
Species: G. gigas
Binomial name
Gyromitra gigas
(Krombh.) Cooke (1878)

Helvella gigas Krombh. (1834)[1]
Neogyromitra gigas (Krombh.) S.Imai (1938)[2]
Maublancomyces gigas (Krombh.) Herter (1950)
Discina gigas (Krombh.) Eckblad (1968)[3]

Gyromitra gigas
View the Mycomorphbox template that generates the following list
Mycological characteristics
smooth hymenium
cap is convex
hymenium attachment is not applicable
stipe is bare

spore print is yellow

to buff

ecology is saprotrophic

or mycorrhizal

edibility: choice

but not recommended

Gyromitra gigas, commonly known as the snow morel, snow false morel, calf brain, or bull nose, is a fungus and a member of the Ascomycota. G. gigas is found in Europe, western North America where it is common in mountainous areas in coniferous forests, and eastern North America where it is found with both conifers and hardwoods.[5] It is referred to as one of the false morels, due to its similar appearance and occurrence in the spring and early summer in similar habitats to true morels (Morchella ssp.). It is edible if properly prepared but should be avoided due to variability and similarity to other more toxic species of Gyromitra.[6]


The species was first described scientifically by Julius Vincenz von Krombholz as Helvella gigas.[1]

These scientific names G. montana and G. korfii have been made synonymous with G. gigas based on an analysis of spore morphology.[7][8]

See also[edit]


  1. ^ a b von Krombholz JV. (1834). "Naturgetreue Abbildungen und Beschreibungen der Schwämme" (in German). 3: 1–36. 
  2. ^ Imai S. (1938). "Symbolae ad floram mycologicum asiae orientalis II". Botanical Magazine Tokyo. 52: 357–63. 
  3. ^ Eckblad FE. (1968). "The genera of the operculate discomycetes". Nytt Magasin for Botanik. 15 (1–2): 1–191 (see p. 99). 
  4. ^ "Gyromitra gigas (Krombh.) Cooke 1878". MycoBank. International Mycological Association. Retrieved 2012-11-04. 
  5. ^ Arora D. (1986). Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi (2nd ed.). Berkeley, California: Ten Speed Press. pp. 800–1. ISBN 0898151694. 
  6. ^ Volk T. (May 2002). "Tom Volk's Fungus of the Month: Gyromitra esculenta". Retrieved 2011-05-03. 
  7. ^ Abbott SP, Currah RS. (1997). "The Helvellaceae: systematic revision and occurrence in northern and northwestern North America". Mycotaxon. 62: 1–125. 
  8. ^ Kuo, M. (March 2006). "Gyromitra montana (Gyromitra gigas)". MushroomExpert.Com. Retrieved 2012-03-12. 

External links[edit]