Tricholoma album: Difference between revisions

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<ref name=Trappe1962>{{cite journal |title=Fungus associates of ectotrophic mycorrhizae |author=Trappe, James M. |volume=28 |issue=4 |journal=Botanical Review |year=1962 |pages=538–606 |issn=00068101 |jstor=4353659}}</ref>
<ref name=Trappe1962>{{cite journal |title=Fungus associates of ectotrophic mycorrhizae |author=Trappe, James M. |volume=28 |issue=4 |journal=Botanical Review |year=1962 |pages=538–606 |issn=00068101 |jstor=4353659 |doi=10.1007/BF02868758}}</ref>


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Revision as of 17:01, 15 October 2011

Tricholoma album
Scientific classification
Kingdom:
Division:
Class:
Order:
Family:
Genus:
Species:
T. album
Binomial name
Tricholoma album
(Schaeff.) P.Kumm. (1871)
Synonyms[1]

Agaricus albus Schaeff. (1774)
Gyrophila alba (Schaeff.) Quél. (1886)

Tricholoma album
View the Mycomorphbox template that generates the following list
Gills on hymenium
Cap is convex or flat
Hymenium is adnexed
Stipe is bare
Spore print is white to cream
Ecology is mycorrhizal
Edibility is inedible

Tricholoma album, commonly known as the white knight, is an all-white mushroom of the large genus Tricholoma. It is found in Europe, India, and possibly North America. The cap and gills are white. The whitish stipe has no ring.

Taxonomy, naming, and classification

The species was originally described as Agaricus albus by Jacob Christian Schäffer in 1774,[2] and reclassified as Gyrophila alba by mycologist Lucien Quélet in 1886.[3] It was given its current binomial name by German Paul Kummer in 1871.[4] The British Mycological Society has listed "white knight" as its common name.[5] The generic name derives from the Greek trichos/τριχος 'hair' and loma/λωμα 'hem', 'fringe' or 'border', while the specific epithet is the Latin adjective albus "white".[6]

The fungus is classified in the section Lasciva of the genus Tricholoma, characterised by species with a strong odor and acrid or bitter taste;[7] an older classification has it placed in section Inamoena.[8]

Marcel Bon named the variety Tricholoma album var. thalliophilum to account for those mushrooms that differed by staining blue-green with thallium oxide and sulfoformol;[9] in the absence of additional differentiating characters, some later authors have questioned the taxonomical value of this characteristic.[10]

Description

The cap is 3–7.5 cm (1.2–3 in) wide and white with a pale yellow tinge, and more yellow or ochre in the centre as the fruit body ages. Convex with a slight boss, the cap is broadly conical in shape with inrolled margins. The white to pale yellow or ochre-tinged stipe is 3–8.5 cm (1.2–3.4 in) high and 0.8–1.5 cm wide and has no ring. There is no ring or volva. The mushroom has a prominent unpleasant sweet smell reminiscent of honey and radishes, and has an acrid and disagreeable taste.[1] The thick gills are widely spaced with finely serrated edges. The spore print is white, the oval or oblong spores 5–7 μm long by 3.5–5 μm wide.[7]

Ecology, habitat and distribution

Tricholoma album is found across Europe, the fruit bodies appearing between August and December, in association with oak (Quercus) trees,[7] with which they form a mycorrhizal relationship.[11] Experiments have demonstrated that inoculating blue pine (Pinus wallichiana) and deodar (Cedrus deodara) seedlings with the fungus increases plant height and shoot and root biomass.[12] The mushroom can be encountered growing in sizeable fairy rings.[6] The presence of the mushroom in North America has not been confirmed.[13] It has been reported from India in 2010.[14]

References

  1. ^ a b "Tricholoma album (Schaeff.) P. Kumm. 1871". MycoBank. International Mycological Association. Retrieved 15 June 2011.
  2. ^ Schaeffer, Jacob Christian (1774). Fungorum qui in Bavaria et Palatinatu Nascuntur Icones (in Latin). Vol. 4. p. 68.
  3. ^ Quélet, Lucien (1886). Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium (in Latin). Lutetiae, Octavii Doin. p. 16.
  4. ^ Kummer, Paul (1871). Der Führer in die Pilzkunde (in German). Zerbst. p. 107.
  5. ^ "English Names for fungi". British Mycological Society website. British Mycological Society.
  6. ^ a b Nilson, Sven; Persson, Olle (1977). Fungi of Northern Europe 2: Gill-Fungi. Penguin. p. 24. ISBN 0-14-063006-6.{{cite book}}: CS1 maint: multiple names: authors list (link)
  7. ^ a b c Noordeloos M.E.; Kuyper, Th.W.; Vellinga E.C. (1999). Flora Agaricina Neerlandica. Taylor & Francis. p. 144. ISBN 9054104937.{{cite book}}: CS1 maint: multiple names: authors list (link)
  8. ^ Riva, A. (1998). "Il genere Tricholoma (Fr.) Staude. Aggiornamento della monografia pubblicata nel III volume della collana Fungi europaei, 1988". Rivista di Micologia (in Italian). 41 (3): 243–66. ISSN 0394-9486. {{cite journal}}: Unknown parameter |trans_title= ignored (|trans-title= suggested) (help)
  9. ^ Bon, Marcel (1969). "Révision des Tricholomes". Bulletin de la Société Mycologique de France (in French). 85: 475–92.
  10. ^ Christensen, M.; Noordeloos, M.E. (1999). "Notulae ad floram agaricinam neerlandicam XXXVI. Tricholoma". Persoonia. 17 (2): 295–317.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  11. ^ Trappe, James M. (1962). "Fungus associates of ectotrophic mycorrhizae". Botanical Review. 28 (4): 538–606. doi:10.1007/BF02868758. ISSN 0006-8101. JSTOR 4353659.
  12. ^ Dar, G.H.; Muzafer, B.A.; Nadeem, G.A. (2010). "Influence of ectomycorrhizal inoculation on blue pine (Pinus wallchiania) and deodar (Cedrus deodara) seedlings" (abstract). Trends in Biosciences. 3 (1): 60–62.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  13. ^ Kuo, Michael (December 2004). "The Genus Tricholoma". MushroomExpert.Com. Retrieved 15 June 2011.
  14. ^ Hedawoo, G.B. (2010). "Wild mushroom flora from Amravati Region, Maharashtra, India". Journal of Mycology and Plant Pathology. 40 (3): 441–44. ISSN 0971-9393.