Observation 169156: Caloboletus Vizzini

When: 2014-07-04

Collection location: Seven Tubs Natural Area, Pennsylvania, USA [Click for map]

Who: Dave W (Dave W)

No specimen available

Singular specimen in forest of hemlock, birch, and other hardwoods. B. miniato-olivaceus growing in the vicinity. So I did consider this possibly being a very faded example of mini-o (collected after a heavy rainfall). But, other than cap color, there are a few things that eliminate mini-o: strong bluing on pores and all cut context, KOH dull orange on cap surface (several examples of mini-o all turned olive with KOH on cap). Spores are similar to mini-o, with quotient averaging a bit larger for the mushroom featured in this obs.

Second micro-photo shows what appear to be cystidia that match the roseipes description put forth in B/R/B… long, thin, a bit thicker in the mid-section.

Upper stipe pale without observable reticulations.

I have found solitary examples of this type at the same location in the past. B. inedulis and B. calopus are other names I have considered.


Proposed Names

-29% (1)
Used references: B/R/B
58% (1)
Recognized by sight

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= Observer’s choice
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Created: 2014-07-06 23:21:04 CDT (-0400)
Last modified: 2018-01-05 10:02:13 CST (-0500)
Viewed: 66 times, last viewed: 2019-07-15 04:40:07 CDT (-0400)
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