Boletus subcaerulescens

Boletus subcaerulescens is a basidiomycete fungus of the genus Boletus found in northeastern North America. The fruiting bodies are found associated with pine and spruce. The cap is up to 18 cm wide, convex to flat, and brown in color. The tubes are yellow and stain blue (later becoming brown) when bruised, while the flesh is white to buff and does not stain when cut. The stem is brown like the cap and has a light-colored reticulate texture.[1][2]

Boletus subcaerulescens
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Boletales
Family:
Boletaceae
Genus:
Boletus
Species:
B. subcaerulescens
Binomial name
Boletus subcaerulescens
(E.A. Dick & Snell) Both, Bessette, & A.R. Bessette 2000[1]
Synonyms

Boletus edulis subsp. subcaerulescens E.A. Dick & Snell 1965
Boletus edulis f. subcaerulescens (E.A. Dick & Snell) Vassilkov 1966
Boletus separans var. subcaerulescens (E.A. Dick & Snell) A.H.Sm. & Thiers 1971

Boletus subcaerulescens
float
Mycological characteristics
pores on hymenium
cap is convex
hymenium is adnexed
stipe is bare
spore print is olive-brown
ecology is mycorrhizal
edibility: unknown

The specific epithet is from Latin: sub- + caeruleus + -escens, literally "becoming dark blue beneath".

Phylogenetic analysis has shown B. subcaerulescens as a member of a clade, or closely related group, with B. pinophilus, B. regineus, B. rex-veris, B. fibrillosus, and Gastroboletus subalpinus.[3]

See also

References
  1. Bessette, Alan; Roody, William C.; Bessette, Arleen Rainis (2000). North American boletes: a color guide to the fleshy pored mushrooms. Syracuse University Press. pp. 161–2. ISBN 978-0-8156-0588-1.
  2. Smith, Alexander H.; Thiers, Harry D. (1971). The boletes of Michigan. Ann Arbor: University of Michigan Press. p. 365. ISBN 0-472-85590-5.
  3. Dentinger, Bryn T.M.; et al. (2010). "Molecular phylogenetics of porcini mushrooms (Boletus section Boletus)" (PDF). Molecular Phylogenetics and Evolution. 57 (3): 1276–1292. doi:10.1016/j.ympev.2010.10.004. PMID 20970511. Archived from the original (PDF) on 2013-05-23.


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