Gyroporus castaneus

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Gyroporus castaneus
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Boletales
Family:
Gyroporaceae
Genus:
Gyroporus
Species:
G. castaneus
Binomial name
Gyroporus castaneus
Synonyms

Boletus castaneus Bull. (1787)
Suillus castaneus (Bull.)

P.Karst.
(1882)
Leucobolites castaneus (Bull.) Beck (1923)

Gyroporus castaneus
View the Mycomorphbox template that generates the following list
Pores on hymenium
Cap is convex or flat
mycorrhizal
Edibility is choice but not recommended

Gyroporus castaneus, or commonly the chestnut bolete, is a small, white-pored relation of the Boletus mushrooms. It has a brown cap, and is usually found with oak trees. It differs from the true boletes in that the spores are a pale straw colour.

Taxonomy

The species was described initially by the French mycologist

Gyroporaceae
. Gyroporus means 'having round pores', and castaneus is a reference to the chestnut colouration.

Description

The cap is from 3 to 10 cm in diameter, and pale to rusty brown in colour, which becomes darker with age. The stem is a similar colour, although it may be lighter at the apex. If the stem is cut vertically, it is usual to find several cavities of differing sizes inside. Both the cap and the stem have a tendency to crack or split in dry periods, or with age. The pores are small and white; they become dirtier with age, and are not attached to the stem. They darken slightly when pressed. The tubes are also whitish, and the spore print is pale yellow to straw. The flesh is firm,[1] and does not change colour on cutting. The photograph on the right shows the chunkier form; a slender form also occurs.

Illustration of typical stem cavities in G. castaneus

Distribution and habitat

The mushroom is found occasionally in Britain and throughout continental Europe, as well as eastern North America, but it is rare in western North America.

Quercus). It prefers acid and sandy soils, and fruits from summer to autumn. In New Zealand, it is found in association with Leptospermum.[3] In Asia, it has been recorded from Taiwan.[4]

Gyroporus castaneus has been included in the

Russian Federation's Red Book and several other countries' Red Lists, including those of Norway and Montenegro.[5][6][7]

Edibility

Gyroporus castaneus is

poisonous strain of this mushroom in coastal Portugal.[10]

See also

References

Wikimedia Commons has media related to Gyroporus castaneus.
  1. ISBN 0-330-44237-6
    .
  2. ISBN 0-89815-169-4
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  3. doi:10.1080/0028825X.1968.10429056. Open access icon
  4. ^ Yeh K-W, Chen Z-C. (1980). "The boletes of Taiwan" (PDF). Taiwania. 25 (1): 166–184. Archived from the original (PDF) on 2015-11-26. Retrieved 2015-11-12.
  5. ^ "Каштановий Гриб". Red Book of Moscow Oblast. Archived from the original on May 17, 2008. Retrieved September 5, 2008.
  6. ^ "The Provisory Red List of Endangered Macromycetes of Montenegro" (PDF). Montenegrin Mycological Center. Retrieved September 5, 2008.
  7. ^ "Red List of Threatened Fungi in Norway". Fungiflora 1998. Retrieved September 5, 2008.
  8. ISBN 978-1-55407-651-2
    .
  9. ISBN 0-340-39935-X
    .
  10. ISBN 0-7513-1070-0
    .
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