Observation 51673: Gastroboletus Lohwag
When: 2010-08-29
Herbarium specimen reported

Notes: Part of Yosemtite Fungal Survey, collected by David Rust under lodgepole pine.

Proposed Names

-57% (1)
Used references: Thier’s “California Mushrooms, A Field Guide to Boletes”
31% (2)
Eyes3
Recognized by sight: slow to blue, and then only partially blues; pores also partially blue. context yellow, with some red.
Based on microscopic features: good match for amyloideus…except the spores aren’t amyloid! ;)
23% (3)
Recognized by sight: Fruiting at the same time as other collections of G. vividus from the park.
Inamyloid spores.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Key
By: Darvin DeShazer (darv)
2010-09-05 10:32:47 PDT (-0700)

Try the key in Mycotaxon 83: 412-413
It is free, online at CyberLiber, An Electronic Library for Mycology

according to the G. vividus description in the Handbook to Strategy I Fungal sp…
By: Debbie Viess (amanitarita)
2010-09-05 08:15:24 PDT (-0700)

that species does NOT blue (nor did the other good example of it here, altho there was a suspicious patch of color on one fruit body, present when first dug up; depite that example being cut and lying about for a couple of days, no other blue color was noted):

http://mushroomobserver.org/51604?q=1cNY

This particular Gastroboletus species, collected by David did blue, slowly, on both pores and context.

The spores of the two are similar, tho. Perhaps it is the description that is wrong, and blueing variable?

will post micrographs soon.
By: Debbie Viess (amanitarita)
2010-09-04 13:07:09 PDT (-0700)

Created: 2010-08-30 07:48:15 PDT (-0700)
Last modified: 2013-08-26 18:48:36 PDT (-0700)
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