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Suillus tomentosus

Summary

Suillus tomentosus is a species of mushroom. The common names of the species are blue-staining slippery jack, poor man's slippery Jack, and woolly-capped suillus.

Suillus tomentosus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Boletales
Family: Suillaceae
Genus: Suillus
Species:
S. tomentosus
Binomial name
Suillus tomentosus
(Kauffman) Singer

Description edit

The cap is 5–12 cm (2–4+3⁄4 in) wide,[1] pale to orange-yellow with grayish brownish or reddish tomentum, and viscid while fresh.[2] The fibrillose-scaly surface of the cap helps distinguish it from other species in the genus.[3] The tubes are yellow and become blue when bruised.[4] The stipe is 4–11 cm (1+5⁄8–4+3⁄8 in) tall and 1–3 cm wide,[1] grandular dotted and the color is similar to the cap.[2] The cap is scaly and has fibrillose. The spores are brownish when they are young.[5] The spore print is dark olive brown to brown.[6] The species stains fingers blue.[7] It has no veil.[2]

The yellow interior of the mushroom should slowly turn green-blue when cut with a knife.[8]

Edibility edit

The mushroom may be edible to some while others may find its taste acidic even after cooking.[4] The species has been known to cause gastric upset in some people.[9] The author David Arora said the species tastes the same as Suillus fuscotomentosus.[5] Arora reports that one collector stated the mushroom smells and tastes like Tootsie Rolls when dried.[10] The species have also been said to smell like almonds.[9] When they look for this species, consumers are advised to be careful to distinguish it from other species that stain blue but are poisonous.[11]

Similar species edit

Similar species include S. fuscotomentosus,[1] S. reticulatus, S. variegatus,[5] and Boletus subtomentosus.[1]

Suillus tomentosus
 
 Pores on hymenium
   Cap is convex or flat
 Stipe is bare
 
Spore print is olive-brown
 Ecology is mycorrhizal
 Edibility is edible

Habitat edit

The species is commonly found in the Rocky Mountains of Idaho and the Pacific Northwest. It is less common in the lake states. The species fruits in the summer in the Rocky Mountains. Also, the species fruits in autumn along the Pacific coast and in the lake states.[4] The species is by itself or scattered in mixed forests.[12] The species can commonly be found under lodgepole pines or other two-needle pines. It is rarely found under jack pines.[9]

Suillus tomentosus forms tuberculate ectomycorrhizae (mycorrhizae that are nodular) with lodgepole pine (Pinus contorta var. latifolia). Recent work has shown that acetylene is reduced by the nodules which means that nitrogen is being fixed by bacteria within the nodules.[13][14] This system is functionally similar to the root nodules in legumes like clover. Lodgepole pine can be found growing on gravel pits or other extremely nitrogen deficient soils. Lodgepole pine with its S. tomentosus symbiont is one of the most common pioneer species in northern forests. It colonizes highly disturbed soils and creates an environment suitable for other species to colonize.

See also edit

References edit

  1. ^ a b c d Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. pp. 334–335. ISBN 978-0-520-95360-4. OCLC 797915861.
  2. ^ a b c Trudell, Steve; Ammirati, Joe (2009). Mushrooms of the Pacific Northwest. Timber Press Field Guides. Portland, OR: Timber Press. pp. 224–225. ISBN 978-0-88192-935-5.
  3. ^ "SUILLUS TOMENTOSUS". MykoWeb. Retrieved 29 January 2010.
  4. ^ a b c H. Smith, Alexander (1974). The Mushroom Hunter's Field Guide. The University of Michigan Press. p. 86.
  5. ^ a b c Arora, David (1986). Mushrooms demystified: a comprehensive guide to the fleshy fungi. Ten Speed Press. pp. 505. ISBN 978-0-89815-169-5. Suillus tomentosus.
  6. ^ "SUILLUS TOMENTOSUS". MykoWeb. Retrieved 2010-01-28.
  7. ^ Multiple authors (2000). North American boletes: a color guide to the fleshy pored mushrooms. Syracuse University Press. p. 255. ISBN 978-0-8156-0588-1.
  8. ^ Whitney, Stephen (1985). Western Forests (The Audubon Society Nature Guides). New York: Knopf. p. 496. ISBN 0-394-73127-1.
  9. ^ a b c Miller Jr., Orson K.; Miller, Hope H. (2006). North American Mushrooms: A Field Guide to Edible and Inedible Fungi. Guilford, CN: FalconGuide. p. 359. ISBN 978-0-7627-3109-1.
  10. ^ Arora, David (1991). All That the Rain Promises and More: A Hip Pocket Guide to Western Mushrooms. Ten Speed Press. p. 178. ISBN 978-0-89815-388-0.
  11. ^ Multiple authors (1998). A Field Guide to Mushrooms: North America. Houghton Mifflin Harcourt. p. 208. ISBN 978-0-395-91090-0.
  12. ^ Multiple authors (1997). The Macrofungus Flora of China's Guangdong Province. Chinese University Press. p. 471. ISBN 978-962-201-556-2.
  13. ^ Paul, L.R.; Chapman, B.K.; Chanway, C.P. (2007). "Nitrogen Fixation Associated with Suillus tomentosus Tuberculate Ectomycorrhizae on Pinus contorta var. latifolia". Annals of Botany. 99 (6): 1101–1109. doi:10.1093/aob/mcm061. PMC 3243579. PMID 17468111.
  14. ^ [1], Paul, Chapman and Chanway, Can. J. For. Res. Vol. 36, 2006.

External links edit

  •   Media related to Suillus tomentosus at Wikimedia Commons

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