Observation 81580: Suillus hirtellus (Peck) Snell

These Suillus specimens were found by an unknown NJMA foray participant in the Pine Barrens. I couldn’t find a satisfactory match for this interesting Suillus sp. in “North American Boletes” by Bessette-Roody-Bessette even though some morphological features, such as lack of annulus, orange pileipellis (when young), yellow-orange flesh and violet-red staining with KOH, should readily eliminate the vast majority of species from the list of possible “suspects”. Though the books undoubtedly happens to be the most comprehensive and readily available guide on genus Suillus, still it only describes half of species known from the NA continent.


Staining of the context with aqueous 3% KOH (right half); no visible reaction was observed with aqueous ammonia (left half)
Staining of the pileipellis with 3% KOH (aq)
Staining of the pore surface with 3% KOH (aq)
This is a younger specimen of the same species. Note the orangish cap and more pronounced staining action with KOH.

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That’s a neat one!
By: Christian (Christian Schwarz)
2011-11-06 20:45:20 EST (-0500)

Created: 2011-11-06 19:51:24 EST (-0500)
Last modified: 2017-12-29 21:19:03 EST (-0500)
Viewed: 60 times, last viewed: 2017-12-29 21:18:48 EST (-0500)
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