Leucocoprinus fragilissimus

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Leucocoprinus fragilissimus
Leucocoprinus fragillissimus 38188.jpg
Scientific classification edit
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Agaricaceae
Genus: Leucocoprinus
L. fragilissimus
Binomial name
Leucocoprinus fragilissimus
(Berk. & M.A.Curtis) Pat. (1900)

Hiatula fragilissima Ravenel (1853)[1]
Lepiota fragilissima (Ravenel) Morgan (1907)

Leucocoprinus fragilissimus
View the Mycomorphbox template that generates the following list
gills on hymenium
cap is campanulate or convex
hymenium is free
stipe has a ring
spore print is white
ecology is saprotrophic
edibility: unknown

Leucocoprinus fragilissimus, commonly known as the fragile dapperling,[3] is a species of gilled mushroom in the family Agaricaceae.


The species was first documented by French mycologist Narcisse Théophile Patouillard in 1900.[4]


The cap of the fruit body is up to 4.5 cm (1.8 in) wide, bell-shaped when young and growing to convex in maturity. It has a pale yellow colour that fades with age, and white gills. The narrow stalk is between 1 and 3 mm thick and very fragile.[5]

Similar species[edit]

Leucocoprinus magnicystidiosus is a similar mushroom, with a darker disc and larger cheilocystidia.[5]

Habitat and distribution[edit]

Like all Leucocoprinus species, L. fragilissimus is a saprotroph, living on very decayed plant matter (humus or compost). It grows solitarily or sparsely in wooded areas.[6] The species is found in southern North America, South America, southern Europe, Africa, southern and eastern Asia, Australia, and New Zealand.[3]

Toxicity and chemistry[edit]

The toxicity of this mushroom is unknown.[5]


  1. ^ Berkeley MJ, Curtis MA. (1853). "Centuries of North American fungi". Annals and Magazine of Natural History. 12 (72): 417–35. doi:10.1080/03745485709495068.
  2. ^ "Leucocoprinus fragilissimus (Berkeley & M.A. Curtis) Patouillard 1900". MycoBank. International Mycological Association. Retrieved 2012-03-31.
  3. ^ a b Roberts P, Evans S. (2011). The Book of Fungi. Chicago, Illinois: University of Chicago Press. p. 214. ISBN 978-0226721170.
  4. ^ Patouillard N. (1900). Essai taxonomique sur les familles et les genres des Hyménomycètes (in French). Lons-Le-Saunier: Lucien Declume. p. 171.
  5. ^ a b c Bessette, Alan; Bessette, Arleen (1997). Mushrooms of northeastern North America. Syracuse University Press. p. 191.
  6. ^ "Mushroom, the Journal of Wild Mushrooming". Retrieved 28 March 2012.