Observation 181384: Amanita bisporigera G.F. Atk.
When: 2014-10-01
( 1800m)
No herbarium specimen

Notes: Under oak.

Proposed Names

58% (1)
Eye3 Eyes3
Based on chemical features: Cap strongly yellowing in KOH

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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There are at least five eastern North American taxa with cap yellowing in KOH.
By: R. E. Tulloss (ret)
2014-10-03 08:39:25 PDT (-0700)

And there is at least one other in western North America.

The number of KOH positive taxa is uncertain and may grow a bit further.

Microscopy is unavoidable now for bisporigera, which (in the current state of knowledge) is still (or again, if you prefer) the only species with rather plentiful 2-spored basidia.

We’re in a process of re-establishing species concepts for the white “destroying angels” of North America.

Mexican material would be very useful for that purpose.

Very best,

Rod Tulloss

Created: 2014-10-03 07:52:08 PDT (-0700)
Last modified: 2014-10-03 07:52:24 PDT (-0700)
Viewed: 14 times, last viewed: 2016-10-23 20:11:14 PDT (-0700)
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