Observation 74104: Tylopilus sordidus (Frost) A.H. Sm. & Thiers

When: 2011-08-16

Collection location: Luzerne Co., Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

Collection includes specimens at various growth stages, with macro differences seemingly correlated with age of fruit bodies.

Cap: dark and minutely wrinkled in young one, minutely cracked in mature one, rimose in old one.

Pores: whitish on young one with dark brown bruising, dingy yellowish on old one with blue bruising that mixes with red and finally balckish.

Stipe: densely and darkly punctate/pruinose on young one, dark punctate on mature one, coarsely reticulate on old one (which came as a surprise to me).

Context: white. Bruising: light blue and then slowly to red on young one, blue then red on mature and old ones. Cut context on all eventually blackish.

On lawn 2-15 feet from woods which feature a few fast growing oak saplings.

Proposed Names

91% (2)
Eye3 Eyes3
Recognized by sight
Based on chemical features: KOH on context reddish brown, sometimes preceded by a blue flash.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
I wrapped a few pieces
By: Dave W (Dave W)
2011-08-18 10:05:22 PDT (-0700)

with exposed context inside some wax paper, and the paper stained blue… sort of a turqoise blue.

Created: 2011-08-16 23:11:47 PDT (-0700)
Last modified: 2011-08-18 11:09:10 PDT (-0700)
Viewed: 82 times, last viewed: 2017-08-26 17:49:12 PDT (-0700)
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