Observation 23694: Pluteus petasatus (Fr.) Gillet

When: 2009-07-24

Collection location: Edgewood Blue, Wells Gray region, British Columbia, Canada [Click for map]

Who: Jason Hollinger (jason)

Specimen available

Found this old thing by itself on a rotten alder log (log was small — only 2-3" diameter) in moist spruce forest by bog. Spore print flesh-brown. Gills look free(?!) No sign of a veil seen.

Can this be a Pluteus??


Updates: see photo of pleurocystidia and spore print. Spores are smooth and colorless (at 1000x), ~8 × 5.5 µm. Pleurocystidia are abundant, bowling-pin shaped with conspicuous horns at the tip, much like those of Pluteus cervinus.


Spores and pleurocystidia, in water at 1000×.
Spore print.

Proposed Names

45% (2)
Recognized by sight: Looks a lot like a Pluteus to me growing on alder
58% (1)
Eye3 Eyes3
Used references: Key on MushroomExpert.com: http://www.mushroomexpert.com/pluteus.html
In dry weather it can turn firbrillose all over like this (according to the Polish site referred to by MushroomExpert.com).

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Keys out to Tricholomopsis in Aurora
By: Daniel B. Wheeler (Tuberale)
2009-07-31 18:20:29 PDT (-0700)

but not a Tricholomopsis species I’m familiar with. The white scales, stipe and gills distinquish it from anything else in the genus. Still, found directly growing from wood limits the possibilities…

Created: 2009-07-30 16:07:21 PDT (-0700)
Last modified: 2009-07-30 16:07:21 PDT (-0700)
Viewed: 65 times, last viewed: 2019-01-06 18:20:44 PST (-0800)
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