Observation 137482: Boletus bicolor Peck

Cap 10.2 cm across by 1.8 cm deep.
Stipe 8.0 × 2.4 cm

Smell: mild. Taste: mild
Leaves on ground indicate it is under red oak, otherwise in hardwood forest.
Cap turns yellow with KOH.
Basal mycelium white.
Spores smooth, ellipsoid, 9-11 × 4-5 um

Proposed Names

28% (1)
Recognized by sight
0% (2)
Recognized by sight: See comments.
58% (2)
Eye3 Eyes3
Used references: Mushrooms of Northeastern North America by Bessette, Bessette and Fischer.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Tapered stipe…
By: Dave W (Dave W)
2013-06-26 12:37:52 CDT (-0400)

reminds me of the rubellus/fraterus types, but certainly does not rule out bicolor. Also, the sectioned mushrooms appears to have rather pale-colored context for bicolor. But this may just be a function of color contrast with the background. Actually, in my own photos of bicolor, the bright yellow color of the context is often washed-out. Uniformly shallow tube layer points toward bicolor. Also, very small pores and white basal mycelium are bicolor traits.

Created: 2013-06-24 13:18:33 CDT (-0400)
Last modified: 2013-06-26 17:42:46 CDT (-0400)
Viewed: 52 times, last viewed: 2017-06-16 04:46:58 CDT (-0400)
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