Observation 80775: Boletus edulis var. grandedulis Arora & Simonini


Copyright © 2011 Britney
Copyright © 2011 Britney
Copyright © 2011 Britney
Copyright © 2011 Britney
Copyright © 2011 Britney

Proposed Names

28% (1)
Recognized by sight
54% (1)
Recognized by sight: size, color, in association with pine on the coast

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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A total of five were found
By: Britney Ramsey (Riverdweller)
2011-10-26 10:28:39 PDT (-0700)

None as big as this one, but all clearly the same. I have some more posting to do and hopefully those will show better details..

“…PS. edulis in WA also stains blue…”….Interesting!

By: Noah Siegel (Noah)
2011-10-26 10:24:29 PDT (-0700)

I found a B. fibrillosus that had a 20 cm cap and was 30 cm tall yesterday in WA. But this isn’t fibrillosus, which has a dark wrinkled cap when young and a different cap texture.

The WA edulis I have been seeing look a little different from the CA grandedulis, this OR collection has a mix of both traits…

PS. edulis in WA also stains blue…

B. fibrillosus?
By: BlueCanoe
2011-10-26 10:09:51 PDT (-0700)

Yeah, the yellow staining and reddish stipe did seem kind of unusual to me, too. Another possibility could be B. fibrillosus, although it doesn’t quite match either. Thiers’ description is too small (cap 6-17 cm), for one thing.

We need some California boletivores to weigh in here.

Definitely in the edulis
By: Christian (Christian Schwarz)
2011-10-26 09:59:04 PDT (-0700)


Past that, it is a bit atypical I wouldn’t hesitate too much to call it var. grandedulis (there’s a lot of morph variation there).

The yellow staining in the upper stipe flesh is weird.

By: Britney Ramsey (Riverdweller)
2011-10-26 09:48:36 PDT (-0700)

That yellow staining, red reticulation at apex, heavy yellow tubes that stain the hand dirty yellow/olive.

I point these out because nothing I read pointed to that drastic a change in features between young and old.

I’m happy to be wrong though. :)

Created: 2011-10-26 09:17:23 PDT (-0700)
Last modified: 2011-10-26 09:44:38 PDT (-0700)
Viewed: 73 times, last viewed: 2018-01-03 17:48:25 PST (-0800)
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