Observation 52283: Boletus edulis Bull.

When: 2010-08-08

Collection location: Kenai Peninsula, Alaska, USA [Click for map]

Who: Debbie Viess (amanitarita)

No specimen available

just the big one.

Proposed Names

4% (3)
Recognized by sight: frosted cap, apricot-colored apex of stipe.
29% (3)
Recognized by sight: Thick reticulate stem, brown cap, outside of the usual range for B. regineus, conifer duff adhering to the base of the stem
61% (2)
Eye3 Eyes3
Recognized by sight: whitish bloom on cap when young IS mentioned in the edulis description on Roger’s Mushrooms.
This Alaskan form may be closer to the European edulis concept. A frosted cap is NOT typical of the edulis that we see along the rest of the west coast, though.

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
A big edulis
By: Noah Siegel (Noah)
2011-11-06 10:06:18 PST (-0800)

isn’t always grandedulis.

Variates are tricky, in most cases you will get overlap with other variations or it will be a separate species outright.

Arora & Simonini described edulis var. grandedulis “differing from typical B. edulis in its brown to slightly reddish pore surface when mature…”

I do believe we should, for the most part, use this name for the CA edulis that the pores go reddish, have a reddish-brown cap; although this can be tricky because in dark forest or under duff they, like most boletes in Section Boletus lack color pigment if they aren’t exposed to light.
We know it is common on the coast under pine, and it will show up under Madrone and at times oak, as well as in the mountains under conifers.

Why not var. grandedulis?
By: Alan Rockefeller (Alan Rockefeller)
2011-11-06 09:08:24 PST (-0800)
as in “edulis group”…
By: Debbie Viess (amanitarita)
2011-11-06 09:00:13 PST (-0800)

sure. we know it’s a porcini, at least one of them.

but show me an edulis description that describes a frosted cap when young?

that’s the feature that I found confusing, and why I was hedging my ID bets.

It fits into “edulis”
By: Noah Siegel (Noah)
2011-11-06 07:58:59 PST (-0800)

but not var. grandedulis

it was the frosted cap…
By: Debbie Viess (amanitarita)
2011-11-06 07:34:47 PST (-0800)

that had me propose regineus. it didn’t fit neatly into an edulis category,

long gone to our gullets…

Created: 2010-09-07 21:35:44 PDT (-0700)
Last modified: 2011-11-06 09:44:11 PST (-0800)
Viewed: 136 times, last viewed: 2018-02-16 18:36:13 PST (-0800)
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