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Amanita smithiana

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Kingdom  Fungi
Order  Agaricales
Genus  Amanita
Higher classification  Amanita
Division  Basidiomycota
Family  Amanitaceae
Scientific name  Amanita smithiana
Rank  Species
Amanita smithiana wwwmykowebcomCAFphotosAmanitasmithianadd22
Similar  Amanita proxima, Amanita arocheae, Amanita ocreata, Amanita magnivelaris, Amanita farinosa

Amanita smithiana fungi kingdom

Amanita smithiana, also known as Smith's amanita, is a species of agaric found on soil in coniferous (Abies, Tsuga, Pseudotsuga) and broadleaved (Alnus, Quercus) woodland in the Pacific Northwest of North America. It fruits in August and September.


Amanita smithiana Amanita smithiana MushroomExpertCom


Amanita smithiana Amanita smithiana on emaze

Amanita smithiana was described by Dutch mycologist Cornelis Bas in 1969. The specific epithet honors mycologist Alexander H. Smith, who collected the type specimens from Washington in 1941. It belongs in the subgenus Lepidella.


Amanita smithiana Amanita smithiana Bas

The cap has a diameter of 5–17 cm (2–7 in) and is white and scaled with remnants of the universal veil. The stipe is 6–18 cm (2–7 in) long by 1–3.5 cm (0.4–1.4 in) thick, white and similarly scaled, with a ring. Spores are ellipsoid to elongated, amyloid, and measure 11–12.5 by 7–8 µm.


Amanita smithiana California Fungi Amanita smithiana

It is responsible for poisonings in the Pacific Northwest when mistaken for the edible and sought after Tricholoma magnivelare. It causes initial gastrointestinal symptoms that manifest 1 to 12 hours after eating the mushrooms, followed by acute renal failure after a delay of 2–6 days. This is often severe, requiring hemodialysis, but most patients recover normal kidney function within several weeks. Gastroenteritis may result in a large loss of fluid volume. Amanita smithiana nephrotoxicity is from chlorocrotylglycine and allenic norleucine.

Amanita smithiana California Fungi Amanita smithiana

Several similar species have been implicated in similar cases of acute renal failure: A. sphaerobulbosa, A. thiersii, A. proxima, (Spain) and A. pseudoporphyria (Japan).

Amanita smithiana Amanita smithiana Bas


Amanita smithiana Wikipedia

Similar Topics
Amanita arocheae
Amanita farinosa
Amanita magnivelaris