Suillus grevillei

Suillus grevillei
Conservation status
Least Concern  (IUCN 3.1) [1]
Secure  (NatureServe) [2]
Scientific classification
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Boletales
Family:	Suillaceae
Genus:	Suillus
Species:	S. grevillei
Binomial name
Suillus grevillei (Klotzsch) Singer, 1945
Synonyms
Boletinus grevillei (Klotzsch) Pomerl., 1980 Boletopsis elegans (Schumach.) Henn., 1898 Boletus annularius Bolton, 1792 Boletus clintonianus Peck, 1872 Boletus cortinatus Pers., 1801 Boletus elegans Schumach., 1803 Boletus elegans var. aureus Fr., 1838 Boletus elegans var. cyanescens Velen., 1939 Boletus grevillei Klotzsch, 1832 Cricunopus elegans (Schumach.) P. Karst., 1882 Ixocomus elegans (Schumach.) Singer, 1938 Ixocomus elegans f. badius Singer, 1938 Ixocomus elegans f. elegans (Schumach.) Singer, 1938 Ixocomus elegans f. griseoloporus Singer, 1938 Ixocomus flavus var. elegans (Schumach.) Quél., 1888 Ixocomus grevillei (Klotzsch) Vassilkov, 1955 Suillus clintonianus (Peck) Kuntze, 1898 Suillus elegans (Schumach.) Snell, 1944 Suillus grevillei f. badius (Singer) Singer, 1965 Suillus grevillei var. badius Singer Suillus grevillei var. clintonianus (Peck) Singer, 1951 Suillus grevillei var. grevillei (Klotzsch) Singer, 1945 Suillus grevillei f. grevillei (Klotzsch) Singer, 1945 Suillus grevillei var. proximus (A.H. Sm. & Thiers) W. Klofac, 2013 Suillus proximus A.H. Sm. & Thiers, 1964 Viscipellis elegans (Schumach.) Quél., 1886 Viscipellis flava var. elegans (Schumach.) Quél., 1886

Suillus grevillei Mycological characteristics
	Pores on hymenium
	Cap is convex
	Hymenium is adnate
	Stipe has a ring
	Spore print is ochre
	Ecology is mycorrhizal
	Edibility is edible

Suillus grevillei, commonly known as tamarack jack, ^[3] Greville's bolete, or larch bolete, is a mycorrhizal mushroom with a tight, brilliantly coloured cap, shiny and wet looking with its mucous slime layer. The hymenium easily separates from the flesh of the cap, with a central stalk that is quite slender. The species has a ring or a tight-fitting annular zone.

Etymology

The specific epithet is derived from Robert Kaye Greville. ^[4]

Description

Suillus grevillei is a mushroom with a 5–10 cm (2–4 in) cap colored from citrus yellow to burnt orange, ^[5] that is at first hemispherical, then bell-shaped, and finally flattened. It has a sticky skin, often with veil remnants on the edge, ^[6] short tubes of yellow (possibly staining brownish) ^[6] which descend down to the bottom of its cylindrical stalk (6–10 x 1–2 cm), which is yellowish above the ring area with streaks of reddish brown below. ^[6] The flesh is yellow, staining brown. ^[6]

The thin meat has consistency at first but then quickly becomes soft. It has an odor reminiscent of rumpled Pelargonium geranium leaves.^{[ citation needed ]}

Habitat and distribution

It grows only under larch trees. ^[3] Widespread in North America and Europe (July–November). ^[5] In Asia, it has been recorded from Taiwan. ^[7]

Edibility

Suillus grevillei can be cooked as an edible mushroom, though one without culinary interest, if the slimy cuticle is removed from the cap. ^{[8] [5]}

Chemistry

The fungus produces grevillin which is characteristic of this fungus. The genetic and enzymatic basis for atromentin, the precursor to various pulvinic acid-type pigments, has been characterized (an atromentin synthetase by the name, GreA). A cosmid library (31 249 bp in total) has been made from the genome. The estimated gene density based on the cosmid library is 1 per 3900 bp of genomic DNA. The genome has a GC content of 49.8%.^{[ citation needed ]}

See also

• List of North American boletes
• Larch bolete, other species of fungi associated with larch

References

1. Dahlberg, A. (2022) [errata version of 2019 assessment]. "Suillus grevillei". IUCN Red List of Threatened Species . 2019: e.T122090805A223016083. doi: 10.2305/IUCN.UK.2019-3.RLTS.T122090805A223016083.en . Retrieved 23 May 2025.
2. NatureServe. "Suillus grevillei". NatureServe Explorer. Arlington, Virginia. Retrieved 22 May 2025.
3. Arora, David (1986) [1979]. Mushrooms Demystified: A Comprehensive Guide to the Fleshy Fungi (2nd ed.). Berkeley, CA: Ten Speed Press. p. 497. ISBN   978-0-89815-170-1.
4. natura.provincia.cuneo.it (In italian), accessed 5 August 2008
5. Francis-Baker, Tiffany (2021). Concise Foraging Guide. The Wildlife Trusts. London: Bloomsbury. p. 182. ISBN   978-1-4729-8474-6.
6. Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. p. 223. ISBN   978-0-88192-935-5.
7. Yeh K-W, Chen Z-C. (1980). "The boletes of Taiwan" (PDF). Taiwania. 25 (1): 166–184.
8. Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 286. ISBN   978-1-55407-651-2.

Works in French

• Régis Courtecuisse, Bernard Duhem : Guide des champignons de France et d'Europe (Delachaux & Niestlé, 1994-2000).
• Marcel Bon : Champignons de France et d'Europe occidentale (Flammarion, 2004)
• Dr Ewaldt Gerhardt : Guide Vigot des champignons (Vigot, 1999) - ISBN   2-7114-1413-2
• Roger Phillips : Les champignons (Solar, 1981) - ISBN   2-263-00640-0
• Thomas Laessoe, Anna Del Conte  : L'Encyclopédie des champignons (Bordas, 1996) - ISBN   2-04-027177-5
• Peter Jordan, Steven Wheeler : Larousse saveurs - Les champignons (Larousse, 1996) - ISBN   2-03-516003-0
• G. Becker, Dr L. Giacomoni, J Nicot, S. Pautot, G. Redeuihl, G. Branchu, D. Hartog, A. Herubel, H. Marxmuller, U. Millot et C. Schaeffner : Le guide des hampignons (Reader's Digest, 1982) - ISBN   2-7098-0031-4
• Henri Romagnesi : Petit atlas des champignons (Bordas, 1970) - ISBN   2-04-007940-8

External links

• Media related to Suillus grevillei at Wikimedia Commons
• Baura G, Szaro TM, Bruns TD. 1992. Gastrosuillus laricinius is a recent derivative of Suillus grevillei: molecular evidence. Mycologia 84(4): 592–597.