Inocybe rimosa (formerly known as Inocybe fastigiata), commonly known as straw-colored fiber head, is a poisonous mushroom native to Europe. Its toxic ingredient is muscarine, discovered during the 1930s.[1] Serious poisoning can result from consuming any quantity of the mushroom.[2]

Inocybe rimosa
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Inocybaceae
Genus: Inocybe
Species:
I. rimosa
Binomial name
Inocybe rimosa
Synonyms

Inocybe fastigiata (Schaeff.) Quél.

German naturalist Jacob Christian Schäffer described this species in 1774. Lucien Quélet transferred it to the genus Inocybe in 1872.[3]

The tan (or rarely whitish) cap is cone-shaped then expands, generally retaining an umbo and a darker center. Its surface is fibrous. The gills are light grayish and brown with age. The stalk is whitish, semi-fibrillose, and slightly clavate. The odour tends to be spermatic.[4]

In Israel, the species grows under Palestine oak (Quercus calliprinos) and pines, with mushrooms still appearing in periods of little or no rain as they are mycorrhizal.[5]

In Israel, it is confused with edible mushrooms of the genus Tricholoma, particularly Tricholoma terreum, and Suillus granulatus, all of which grow in similar habitats.[5] I. sororia is another similar species.[4]

References

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  1. ^ Wilson, Donald (1947). "Poisoning by Inocybe fastigiata". Br Med J. 2 (4520): 297. doi:10.1136/bmj.2.4520.297. PMC 2055394. PMID 20257564.
  2. ^ Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 304. ISBN 978-0-7627-3109-1.
  3. ^ Quélet L. (1872). "Les Champignons du Jura et des Vosges". Mémoires de la Société d'Émulation de Montbéliard. II (in French). 5.
  4. ^ a b Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 168. ISBN 978-0-88192-935-5.
  5. ^ a b Lurie, Yael (2009). "Mushroom poisoning from species of genus Inocybe (fiber head". Clinical Toxicology. 47 (6): 562–65. doi:10.1080/15563650903008448. PMID 19566380. S2CID 205902282.