Observation 104939: Leccinum montanum Thiers

When: 2012-08-12

Collection location: Conboy Wildlife Refuge, Klickitat Co., Washington, USA [Click for map]


Who: Richard Bishop (Leciman)

Specimen available

This Leccinum has been found in several different Aspen groves at this location. The brown cap, lack of sterile margin, presence of hymenial cystidia (rare), and Aspen habitat led me to believe this might be Leccinum montanum. The spores seem to be the right size but the cystidia shape is not the same as specified by Thiers. The ones I have observed are fusoid to fusoid ventricose and often with a elongated apices.

This collection was made on 07/27/2012 and is at my home.


pores were not this yellow

Proposed Names

59% (2)
Used references: California Mushrooms, Boletes of North America, Boletes of Michigan
Based on microscopic features

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= Observer’s choice
= Current consensus


Add Comment
nice job of documentation, Richard!
By: Debbie Viess (amanitarita)
2012-08-14 08:51:25 PDT (-0700)

keep this specimen in good condition. eventually we can add it to the NA Mycoflora collections and even run the DNA, god and funding willin’.

L. montanum
By: Roy Halling (royh)
2012-08-14 06:19:49 PDT (-0700)

looks like a good ID to me. Thiers’ description of the hymenial cystidia would cover what you described, I think. Nice find!