Please do not re-click a link while waiting for a page to load. (It’s slower and degrades site speed for all users.)
To get images for machine learning, see MO Images for Machine Learning


When: 2013-08-04

Collection location: near Echo Summit, El Dorado National Forest, California, USA [Click for map]


Who: Mike McCurdy (lesmcurdy)

Specimen available

This mushroom was found just under the surface in a mixed Abies forest at close to 7000 ft. The fruiting body more or less maintains the shape of a bolete, albeit out of proportion. A coating (peridium ?)too thin to peel covers the entire structure.


Proposed Names

27% (1)
Recognized by sight
40% (3)
Recognized by sight: pale colors, white un-staining flesh. Called Gastroboletus but is a true Boletus
83% (1)
Recognized by sight: same mushroom, now squarely in the Boletus edulis group.

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

= Observer’s choice
= Current consensus


Add Comment
see more info on Gastroboletus sp. status…
By: Debbie Viess (amanitarita)
2013-08-27 14:51:12 PDT (-0700)
Thank you Caz,
By: Mike McCurdy (lesmcurdy)
2013-08-09 16:16:30 PDT (-0700)

and yes, you’re right. I was remiss in not being specific that it was a mixed Abies forest within approx. 100 ft. Also lodgepole pine outside that radius.

Gastroboletus subalpinus Trappe & Theirs
By: Michael Castellano (trufflercaz)
2013-08-09 10:58:49 PDT (-0700)


Nice find, only occurs at high elevation, not rare but rather uncommonly reported. Listed under the Northwest Forest Plan.

when you say fir forest I infer you mean mixed Abies forest, is that correct?

some people can confuse fir for Douglas-fir and Abies mix or several Abies species mix.

as regards which came first, some lines of evolution seem to go from epimgeous muchrooms towards the sequestrate habit such as russuloids and boletoids and others seem to go from the sequestarte habit towards epigeous habit like in some lines in the Phalloids, generalizations usually fail when we discuss nature in ALL its granduer

keep on truffling Mike you seem to have a knack for finding interesting stuff


Harry Thiers
By: Mike McCurdy (lesmcurdy)
2013-08-06 17:47:01 PDT (-0700)

wrote an interesting artical (Mycologia, Jan/Feb 1984, The Secotioid Syndrome) making his case for the evolutionary direction that has occurred. Which came first, gilled or secotioid (both hypogeous and epigigeous) fungi? Any thoughts?

Thank you Noah.
By: Mike McCurdy (lesmcurdy)
2013-08-06 17:25:19 PDT (-0700)