Observation 10033: Amanita flavoconia G.F. Atk.

When: 2008-08-24

Collection location: The Wall Trail, New River Gorge National River, West Virginia, USA [Click for map]

Who: Eddee (eddeeee)

No specimen available

These guys where poping up all over the place. had a hard time Id them

[admin – Sat Aug 14 02:06:45 +0000 2010]: Changed location name from ‘The Wall Trail New River Gorge West Virginia’ to ‘The Wall Trail, New River Gorge National River, West Virginia, USA



Proposed Names

57% (1)
Eye3 Eyes3
Recognized by sight: Found growing under hardwood trees along the wall trail
Used references: David Aurora Mushrooms Dymistifyed. Mclivain 1000 American Fungi.
Based on microscopic features: spore print white

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Measure spores for more certainty…
By: R. E. Tulloss (ret)
2008-08-25 12:30:27 CDT (-0400)

From the picture, this observation could relate to either A. flavoconia var. flavoconia or A. elongata Peck.

Considering the colors in this specimen, it might be worthwhile to measure about 20 spores (be sure both ends are in focus and that you can see the apiculus (the little “peg” that provides attachment to the original attachment to the basidium) and the flattened region beside the apiculus). That orientation is called a “lateral view” of the spore. Add all the lengths to get “total length”; add all the widths to get “total width”. Divide total length by total width. This number is called “bold faced Q” in my notation. It is an approximation of the average spore SHAPE. On the New Jersey Pinebarrens checklist/picture book page page, I believe you can find the experienced ranges for bold faced Q for both this species and A. flavoconia. You can also see the overall average “bold faced Q’” I have computed from all the spores I’ve measured for each taxon. From personal experience to date, I don’t recall a case when the colors plus the spore size and shape did not succeed in segregating elongata from flavoconia. Good luck.

Very best,


Created: 2008-08-24 22:36:30 CDT (-0400)
Last modified: 2011-08-09 22:01:27 CDT (-0400)
Viewed: 17 times, last viewed: 2017-06-05 02:17:14 CDT (-0400)