Observation 71595: Tylopilus ferrugineus (Frost) Singer

When: 2011-07-14

Collection location: Jenny Jump State Park, Hope, New Jersey, USA [Click for map]

Who: I. G. Safonov (IGSafonov)

No specimen available

NH4OH on cap was inconclusive — did not see “a dark violet to vinaceous flash”; however, both NH4OH and KOH stained pileipellis dark brown to dark red-brown, which pretty much matches the description in B-R-B.


KOH stains the context pale yellow

Proposed Names

57% (1)
Eye3 Eyes3
Recognized by sight: Initial ID: a non-bitter brown/red-brown Tylopilus species from the badiceps/ferrugineus/indecisus complex
Used references: “North American Boletes” by Bessette-Roody-Bessette
Based on chemical features: Pileal context staining pale yellow with 3% KOH, a differentiating feature that separates T. ferrugineus from T. badiceps and T. indecisus (B-R-B)

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2011-07-15 00:46:07 CDT (-0400)
Last modified: 2011-07-15 00:48:03 CDT (-0400)
Viewed: 36 times, last viewed: 2018-08-27 08:23:54 CDT (-0400)
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