Observation 50275: Amanita jacksonii Pomerleau

When: 2010-08-07

Collection location: Huayacocotla, Veracruz, Mexico [Click for map]

Who: A. Cortés-Pérez (Alonso)

No specimen available

Proposed Names

35% (2)
Recognized by sight
Used references: Tullos & Yang. 2009Notes on Amanita section Caesareae, Torrendia, and Amarrendia
(Agaricales, Amanitaceae) with provisional division into stirand annotated world key to species of the section
54% (1)
Recognized by sight: Geography, cap color, annulus color, stipe color, color of decoration on stipe, etc. Are those pine needles in the picture? Do you know the approximate altitude of the collecting site? – R.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: R. E. Tulloss (ret)
2010-08-16 04:33:59 CEST (+0200)

I was glad to see an observation from Veracruz.

Thanks for posting it.

Very best,


A. jacksonii
By: A. Cortés-Pérez (Alonso)
2010-08-16 02:53:12 CEST (+0200)

Hello Mr. Tullos, thanks for your comments and guidance in the knowledge of the genus Amanita. Collected material is right is more similar to A. jacksonii.

Long marginal striations and umbo
By: R. E. Tulloss (ret)
2010-08-14 21:00:30 CEST (+0200)

The long marginal striations and umbo make it much more probable that this entity is in the group of “Slender Caesers” (e.g., A. jacksonii) than in the robust group with fleshier caps and short marginal striations (the “Caesars”, e.g., A. basii and the very similar species such as A. yema). Therefore (since I was present when A. jacksonii was collected in cloud forest in Hidalgo edo.) I would suggest the name A. jacksonii as a closer match to the striking photographs that are posted here.

Very best,


Created: 2010-08-14 19:56:58 CEST (+0200)
Last modified: 2010-09-18 21:45:33 CEST (+0200)
Viewed: 58 times, last viewed: 2017-08-29 04:56:29 CEST (+0200)
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