Observation 54836: Boletopsis Fayod

When: 2010-08-17

Collection location: 4.5 km northeast of Pitkin, Colorado, USA [Click for map]

38.6437° -106.4846°

Who: Jim Worrall (jworrall)

Specimen available

Cap dingy yellowish brown, smooth; pore surface white/light gray, bruising reddish brown, bruises drying black; context white, staining light brown, stain drying black; stem light gray above, brown-pink below.
On ground in spruce-fir forest (Picea engelmannii and Abies bifolia)
3322 m elevation.
Specimen J. Worrall 913

Based on color and form, this looks like Boletopsis grisea, but the habitat fits B. leucomelaena. This is like the reverse of the situation reported by Watling & Milne – they found a new species (based on molecular characters) in Scotland that looked like B. leucomelaena but had the habitat (pine) of B. grisea.

[admin – Sun Nov 14 14:13:21 +0000 2010]: Changed location name from ‘4.5 km NE of Pitkin, Gunnison Co., Colorado, USA’ to ‘4.5 km northeast of Pitkin, Gunnison Co., Colorado, USA


See finger bruise on pore surface.
Flesh bruised somewhat but photo is overexposed.

Proposed Names

74% (1)
Eye3 Eyes3
Used references: Ryvarden & Gilbertson 1993, Watling & Milne 2006, 2008, Niemela & Saarenoksa 1989
Based on microscopic features: spores warted, ellipsoid, 4.8 × 6.5

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2010-10-04 16:03:24 -05 (-0500)
Last modified: 2010-11-14 09:13:21 -05 (-0500)
Viewed: 53 times, last viewed: 2017-06-30 05:55:56 -05 (-0500)
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