Tricholoma album
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Tricholoma album
Scientific classification
Kingdom: Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Agaricales
Family:
Tricholomataceae
Genus:
Tricholoma
T. album
Species:
Binomial name
Tricholoma album
(Schaeff.) P.Kumm. (1871)
Synonyms[1]
Agaricus albus Schaeff. (1774)
Gyrophila alba (Schaeff.) Quél.
(1886)
Tricholoma album
Mycological characteristics
gills on hymenium
cap is convex
or flat
hymenium is adnexed
stipe is bare
spore print is white
to cream
ecology is mycorrhizal
edibility: 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.
Contents
1
2
3
4
5
Taxonomy, naming, and classification
Description
Ecology, habitat and distribution
See also
References
Taxonomy, naming, and classification[edit]
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[edit]
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[edit]
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]
See also[edit]
List of Tricholoma species
References[edit]
1. ^
ab
"Tricholoma album (Schaeff.) P. Kumm. 1871". MycoBank. International Mycological Association.
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)
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 014-063006-6.
7. ^ a b c Noordeloos M.E.; Kuyper, Th.W.; Vellinga E.C. (1999). Flora Agaricina Neerlandica. Taylor &
Francis. p. 144. ISBN 90-5410-493-7.
8. ^ Riva, A. (1998). "Il genere Tricholoma (Fr.) Staude. Aggiornamento della monografia pubblicata nel III
volume della collana Fungi europaei, 1988" [The genus Tricholoma (Fr.) Staude. Update on the
monograph published in volume III of the series Fungi europaei, 1988]. Rivista di Micologia (in Italian)
41 (3): 243–66. ISSN 0394-9486.
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.
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.
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.