Observation 175803: Pluteus salicinus group

When: 2014-08-31

Collection location: Fort Flagler, Jefferson Co., Washington, USA [Click for map]

Who: Caleb Brown (Caleb Brown)

No specimen available

Growing 13" from this observation, same decaying log.


Microscopic features seem to match despite no bluing reactions


Spores 2000x KOH
Spores 2000x KOH
Spores 800x KOH
Spores 800x KOH
Pleurocystidia 800x KOH
Pleurocystidia 800x KOH
Pleurocystidia 800x KOH
Pleurocystidia 800x KOH
Cheilocystidia 800x KOH
Cheilocystidia 800x KOH

Proposed Names

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Add Comment
salicinus group
By: Alfredo Justo (Fredo)
2014-09-01 10:59:31 PDT (-0700)

the absence of bluing would not totally rule out that this is the same as your other observation from the same place (http://mushroomobserver.org/113712). In the taxa around P. salicinus bluing usually gets more intense with age.

on the other hand, several Pluteus species can co-occur in a small geographic area, and sometimes on the very same spot

There are a couple of species in the salicinus group that grow on conifers but they have not been (yet) recorded from Western North America.

If you send a couple of specimens over I can have a closer look and try to get molecular data for this collection