Amanita farinosa

Amanita farinosa

Taxobox
name = "Amanita farinosa"


image_caption =
regnum = Fungi
divisio = Basidiomycota
classis = Homobasidiomycetae
subclassis = Hymenomycetes
ordo = Agaricales
familia = Amanitaceae
genus = "Amanita"
species = "A. farinosa"
binomial = "Amanita farinosa"
binomial_authority = (Schw.)
mycomorphbox
name = Amanita farinosa
whichGills = free
capShape = flat
hymeniumType=gills
stipeCharacter=bare
ecologicalType=mycorrhizal
sporePrintColor=white
howEdible=poisonous

"Amanita farinosa" is a North American poisonous mushroom of the genus "Amanita", a genus of fungi including some of the most deadly mushrooms, as well as notably psychedelic mushrooms.

Description

The cap is 2.5-7 cm (1-2.8 inches) in diameter, domed in young and flat in older specimens, with a striate margin. It is whitish grey and covered with brownish grey volval material. The gills are white , as is the stipe (stem). The stem, up to 6.5 cm high, lacks a ring, and at its base a smallish bulb or volva.

Distribution and habitat

An uncommon mushroom, it is found across North America in late summer to late autumn in coniferous or deciduous woodlands.

Classification

Two recent molecular studies show that "Amanita farinosa" is part of a subgroup within "Amanita" with its close relatives the Fly Agaric ("Amanita muscaria"), "A. gemmata" and "A. roseitincta" [Moncalvo J-M, Drehmel D, & Vilgalys R. (2000). Variation in modes and rates of evolution in nuclear and mitochondrial ribosomal DNA in the mushroom genus "Amanita" (Agaricales, Basidiomycota): phylogenetic implications. "Molecular Phylogenetic and Evolution" 16:48-63. ] [Drehmel D, Moncalvo J-M, & Vilgalys R. (1999). Molecular phylogeny of "Amanita" based on large subunit ribosomal DNA sequences: implications for taxonomy and character evolution. "Mycologia" 91:610-618] .

External links

* [http://www.mushroomexpert.com/amanita_farinosa.html Mushroom Expert - Amanita farinosa]

Footnotes


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