Suillus grevillei
{{Short description|Species of fungus}}
{{Speciesbox
| image = Suill.grev.jpg
| genus = Suillus
| species = grevillei
| authority = (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
}}
{{mycomorphbox
| name = Suillus grevillei
| ecologicalType = mycorrhizal
| capShape = convex
| whichGills = adnate
| hymeniumType = pores
| stipeCharacter = ring
| sporePrintColor = ochre
| howEdible = edible
}}
Suillus grevillei, commonly known as Greville's bolete, tamarack jack,{{cite book |last1=Arora |first1=David |title=Mushrooms demystified: a comprehensive guide to the fleshy fungi |date=1986 |publisher=Ten Speed Press |location=Berkeley |isbn=978-0-89815-169-5 |edition=Second}} 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
Description
Suillus grevillei is a mushroom with a 5–10 cm (2–4 in) cap colored from citrus yellow to burnt orange,{{Cite book |last=Francis-Baker |first=Tiffany |title=Concise Foraging Guide |date=2021 |publisher=Bloomsbury |isbn=978-1-4729-8474-6 |series=The Wildlife Trusts |location=London |pages=182}} that is at first hemispherical, then bell-shaped, and finally flattened. It has a sticky skin, often with veil remnants on the edge,{{cite book |last1=Trudell |first1=Steve |url=https://books.google.com/books?id=WevHvt6Tr8kC&pg=PA223 |title=Mushrooms of the Pacific Northwest |last2=Ammirati |first2=Joe |publisher=Timber Press |year=2009 |isbn=978-0-88192-935-5 |series=Timber Press Field Guides |location=Portland, OR |pages=223}} short tubes of yellow (possibly staining brownish) 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. The flesh is yellow, staining brown.
The thin meat has consistency at first but then quickly becomes soft. It has an odor reminiscent of rumpled Pelargonium geranium leaves.
It grows in the soil of mixed forests, not always at the foot of larch (can be quite some distance away) with which it lives in symbiosis.
Habitat and distribution
Grows only under larch trees. Widespread in North America and Europe (July–November). In Asia, it has been recorded from Taiwan.
Edibility
Suillus grevillei can be cooked as an edible mushroom (without consistency nor flavor) if the slimy cuticle is removed off the cap.{{cite book |last=Phillips |first=Roger |title=Mushrooms and Other Fungi of North America |publisher=Firefly Books |year=2010 |isbn=978-1-55407-651-2 |location=Buffalo, NY |page=286}} This mucousy skin layer is what is known to cause intestinal issues, as is the case with several other Suillus such as Slippery Jack (S. luteus) or Jill (S. salmonicolor); often considered to be not worth the work.
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%.
See also
- List of North American boletes
- Larch bolete, other species of fungi associated with larch
References
=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
- {{Commons-inline|Suillus grevillei}}
- Baura G, Szaro TM, Bruns TD. 1992. [https://web.archive.org/web/20080512033924/http://plantbio.berkeley.edu/~bruns/papers/bruns1992c.html Gastrosuillus laricinius is a recent derivative of Suillus grevillei: molecular evidence.] Mycologia 84(4): 592–597.
{{Taxonbar|from=Q833108}}