Tricholoma sulphureum

Tricholoma sulphureum
Tricholoma sulphureum
in woodland, France
Scientific classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Tricholomataceae
Genus: Tricholoma
Species:
T. sulphureum
Binomial name
Tricholoma sulphureum
(Bull. ex Fr.) P.Kumm. (1871)
Tricholoma sulphureum
Gills on hymenium
Cap is convex
Hymenium is adnexed
Stipe is bare
Spore print is white
Ecology is mycorrhizal
Edibility is poisonous

Tricholoma sulphureum, also known as the stinker,[1] sulphur knight or gas agaric, is a species of fungus. The mushroom has a distinctive bright yellow colour and an unusual smell likened to coal gas. It occurs in deciduous woodlands in Europe from spring to autumn. It is inedible or mildly poisonous.

Taxonomy

Tricholoma sulphureum was first described in 1784 by the French botanist Pierre Bulliard and given the name Agaricus sulphureus, before being placed in the genus Tricholoma by German mycologist Paul Kummer in 1871. The specific epithet sulfǔrěus derived from the Latin 'of or pertaining to sulfur'.[2] It belongs to a complex of similar foul-smelling species such as the very similar T. inamoenum.[3] Another related species, T. bufonium, may be an intraspecific variant.

Description

The mushroom is sulphur yellow in colour. It has a convex cap, sometimes brownish near the center with a vague umbo up to 8 cm (3 in) across.[1] The gills are adnexed or notched, thick and spaced. The stem is up to 10 cmlong. The spore print is white.[1] The flesh is thin and has a poor odour.[1]

The smell, caused by the chemical skatole, is enough to distinguish it from other yellow fungi. John Ramsbottom reports that it has a complex smell that has been likened variously to Jasmine, Narcissus, Hyacinth, Hemerocallis flava, Lilac, Tagetes, decayed hemp or coal gas, as well as described as nauseating or foetid.[4] The taste is bitter.

Similar species

It could be confused with the darker T. equestre, which has a sticky cap, white flesh, thin crowded gills, and a mealy smell.[5]

Distribution and habitat

Tricholoma sulphureum is found in deciduous woods, particularly beech, and can occur anytime from spring until autumn.[5] It is found across Europe and has been confirmed as far east as China.[6] It is also distributed in North America,[7] where it grows also with conifers. It is commonly known as the "Stinker" or "Sulfur Trich". In Turkey, it is considered critically endangered.[8]

Toxicity

The fungus is usually classified as inedible and is suspected of being poisonous.[1] Reported symptoms are mostly gastrointestinal, some neurological.[9]

See also

References

  1. ^ a b c d e Arora, David (1986) [1979]. Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi (2nd ed.). Berkeley, CA: Ten Speed Press. p. 179. ISBN 978-0-89815-170-1.
  2. ^ Simpson DP (1979). Cassell's Latin Dictionary (5th ed.). London: Cassell Ltd. p. 883. ISBN 0-304-52257-0.
  3. ^ Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. pp. 103–104. ISBN 978-0-88192-935-5.
  4. ^ *Ramsbottom J (1953). Mushrooms & Toadstools. Collins. ISBN.
  5. ^ a b Haas H (1969). The Young Specialist looks at Fungi. Burke. p. 148. ISBN 0-222-79409-7.
  6. ^ Deng H, Yao YJ (2005). "Revision of three species of Tricholoma reported from China". Mycotaxon. 92: 77–84. ISSN 0093-4666.
  7. ^ Bessette AE, Bessette AR, Roody WC, Trudell SA (2012), Tricholomas of North America
  8. ^ Çinar H, Sermenli HB, Işiloğlu M (2014). "Some critically endangered species From Turkey" (PDF). Fungal Conservation (4): 26–28.
  9. ^ Veselský J, Dvorák J (1981). "Über den Verlauf einer Vergiftung durch den Schwefelgelben Ritterling - Tricholoma sulphureum (Bull. ex Fr.) Kumm". Cĕská Mykologie (in German). 35: 114–15.