Clitocybe nebularis

Clitocybe nebularis or Lepista nebularis, commonly known as the clouded agaric or cloud funnel, is an abundant gilled fungus which appears both in conifer-dominated forests and broad-leaved woodland in Europe and North America. Appearing in Britain from late summer to late autumn, it is edible, but may cause gastrointestinal issues. It is classified as a category-4 edible mushroom in Russia.[2]

Clitocybe nebularis
Nevelzwam (nebularis) tussen afgevallen beukenblad (d.j.b.) 01.jpg
Scientific classification edit
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Tricholomataceae
Genus: Clitocybe
C. nebularis
Binomial name
Clitocybe nebularis
(Batsch), P.Kumm. (1871)

Agaricus nebularis Batsch (1789)
Gymnopus nebularis (Batsch) Gray (1821)
Omphalia nebularis (Batsch) Quél. (1886)
Lepista nebularis (Fr.) Harmaja (1974)

Clitocybe nebularis
View the Mycomorphbox template that generates the following list
gills on hymenium
cap is convex or flat
hymenium is decurrent
stipe is bare
spore print is cream
ecology is saprotrophic
edibility: edible


The species was first described and named as Agaricus nebularis in 1789 by August Johann Georg Karl Batsch. It was later placed in the genus Clitocybe in 1871 by Paul Kummer as Clitocybe nebularis. After much consideration by many mycologists, over some years, when it was placed for periods in both Lepista, and Gymnopus, it was placed back in Clitocybe with the specific epithet, and 1871 creditation it retains today.
Clitocybe nebularis var. alba Bataille (1911), differs only in having a milk white cap, and is very rare.[3]


The cap of the mushroom is 5–25 cm (2–8 in) in diameter, convex with an incurved margin, becoming plane to depressed in shape. Cap colours are generally greyish to light brownish-grey, and often covered in a whitish bloom when young. The surface of the cap is usually dry to moist, and radially fibrillose. The gills are pale, adnate to short-decurrent, close and usually forked.[4] The stem measures 5–10 cm (2–3+78 in) long and 2–4 cm wide;[5] it is stout, swollen towards the base, becomes hollow with age, and is easily broken. It is usually somewhat lighter than the cap.[3] The flesh is white, and very thick. It usually has a foul-smelling odour, which has been described as slightly farinaceous to rancid.[6][4]

The spores are yellow and elliptical.[5]

This species is host to the parasitic gilled mushroom Volvariella surrecta, which is found on older specimens.


The species is edible but even a small portion can cause gastrointestinal disturbances for some people.[7]


Similar speciesEdit

The species may be confused with the poisonous Entoloma sinuatum both in Europe or North America, though this species has pink sinuate gills.[8] It also resembles Leucopaxillus albissimus and Tricholoma saponaceum.[5] Leucopaxillus giganteus is also similar in stature, but is whiter.[4] Infundibulicybe geotropa has a pale brown cap.[4]


  1. ^ "Clitocybe nebularis (Batsch) P. Kumm. 1871". MycoBank. International Mycological Association. Retrieved 2011-10-26.
  2. ^ "Вячеслав Степанов: Грибы Калужской области - Говорушка дымчатая (Clitocybe nebularis )". (in Russian).
  3. ^ a b "Rogers Mushrooms". Archived from the original on 2016-03-04. Retrieved 2011-11-17.
  4. ^ a b c d Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 93. ISBN 978-0-88192-935-5.
  5. ^ a b c Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. pp. 150–151. ISBN 978-0-520-95360-4. OCLC 797915861.
  6. ^ "California Fungi: Clitocybe nebularis". Retrieved 2008-01-11.
  7. ^ Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 187. ISBN 978-0-7627-3109-1.
  8. ^ Haas H (1969). The Young Specialist looks at Fungi. Burke. p. 128. ISBN 0-222-79409-7.