Brown rollrim

Synonyms Poison pax Common roll-rim
Latin Synonyms Ruthea involuta Rhymovis involuta Paxillus involutus var. excentricus
Omphalia involuta var. involuta Omphalia involuta Agaricus involutus Agaricus contiguus
Paxillus involutus (English: Brown rollrim, Poison pax, Common roll-rim) is a common mushroom that grows mainly on forest soils and on woods. Its main season begins in June and ends in November.

Observations

Photo 1, Paxillus involutus, Joansfr
Photo: Joansfr CC
Photo 2, Paxillus involutus, Dr. Hans-Günter Wagner
Photo: Dr. Hans-Günter Wagner CC
Photo 3, Paxillus involutus, Strobilomyces
Photo: Strobilomyces CC
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Practical Data

Sensory, Occurrence, Shape, and Coloring of Paxillus involutus

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Sensory
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Edibility
Deadly Poisonous
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Taste
Mild
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Smell
Sweet
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Occurrence
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Rarity
Common
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Season
June - November
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Growth
Forest Soils Woods
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Shape
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Group
Gill Mushroom
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Size
5 to 16 cm
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Cap
Funnel-Like Hemispherical
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Fruitbody
Bleaching
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Stem
Rooted Fibrous
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Stem Surface
Colubrid-Patterned
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Spore Donor
Adnate Decurrent Gills Narrow
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Coloring
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Cap
Brown Gray Orange
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Flesh
Brown Orange White Yellow
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Gills
Brown Orange Yellow
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Stem
Brown Orange White Yellow
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Cut Change
Brown
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Spore Dust
Brown Red
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Research Data

Etymology and Classification of Paxillus involutus

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Etymology

Scientific name Paxillus involutus
Gender Masculine
Status of name Legitimate
Type of name Combination
Rank Species
Year of publication 1838
Authors E. Fries
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Classification

  • Fungi
  • Dikarya
  • Basidiomycota
  • Agaricomycotina
  • Agaricomycetes
  • Agaricomycetidae
  • Boletales
  • Paxillaceae
  • Paxillus
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Description

Description of Paxillus involutus

Occurrence and Growth

Paxillus involutus (English: Brown rollrim, Poison pax, Common roll-rim) is a common mushroom that grows mainly on forest soils and on woods. Its main season begins in June and ends in November.

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Forest soils

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Woods

Edibility, Taste and Smell

Paxillus involutus is deadly poisonous. The mushroom tastes mild. Its smell can be described as sweet.

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Deadly poisonous

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Mild taste

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Sweet smell

Shape and Surface

Paxillus involutus commonly measures from 5 to 16 cm. The cap is shaped funnel-like and hemispherical. The fruit body is bleaching. The stem is rooted and fibrous. The stem surface is colubrid-patterned. The spore donor can be described as adnate, decurrent, and gills narrow.

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Hemispherical cap

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Funnel-like cap

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Bleaching fruitbody

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Rooted stem

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Fibrous stem

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Colubrid-patterned stem surface

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Adnate spore donor

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Decurrent spore donor

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Gills narrow

Coloring

The cap of Paxillus involutus is frequently colored brown, gray, and orange. The color of the flesh is often brown, orange, white, and yellow. The gills of Paxillus involutus are regularly colored brown, orange, and yellow. The stem is often colored brown, orange, white, and yellow. When cut, the coloring of Paxillus involutus changes to brown. The spore dust is frequently colored brown and red.

Etymology and Classification

Paxillus involutus (Gender: Masculine) was scientifically described by E. Fries and effectively published in 1838. The name Paxillus involutus is of type combination. Paxillus involutus has the status legitimate.

The scientific classification of Paxillus involutus is Fungi, Dikarya, Basidiomycota, Agaricomycotina, Agaricomycetes, Agaricomycetidae, Boletales, Paxillaceae, Paxillus. For further information, please see E. Fries (1838, p. 317).

Synonyms

Paxillus involutus is also known for its latin synonyms Ruthea involuta, Rhymovis involuta, Paxillus involutus var. excentricus, Omphalia involuta var. involuta, Omphalia involuta, Agaricus involutus, Agaricus contiguus.

Brown rollrim is also known for its English synonyms Poison pax, Common roll-rim.

References

Fries, E. 1838. Epicrisis Systematis Mycologici. :1-610

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Similar mushrooms

Mushrooms similar to Paxillus involutus

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Velvet rollrim
Tapinella atrotomentosa

Photo: Holger Krisp creative commons icon

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Clitopilus geminus
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Porpoloma macrocephalum
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Paxillus validus
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Alder rollrim
Paxillus rubicundulus
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Imperial mushroom
Catathelasma imperiale
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Hohenbuehelia geogenia
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External Links

Further information regarding Paxillus involutus