another specimen dried for Tulloss
cap: 5.5cm


Proposed Names

84% (1)
Based on chemical features: nrDNA sequence — see discussion below

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We have received the DNA sequencing data from the voucher of this observation.
By: R. E. Tulloss (ret)
2019-12-13 07:07:48 MST (-0700)

We have a very nice combined nrITS-LSU sequence that is a very good match for previous sequences of Amanita longicuneus. This species is apparently widespread in the eastern U.S. Look inside the volval sack. This the most common species (so far) with a long limbus internus. It looks like there is a prominent volval sac inside the main volva. There are a few other species with a similar situation; however, the DNA studies so far indicate longicuneus (“long wedge” because of the wedge-shaped cross-section of the limbus internus) is the most common.

Thanks for all your efforts. Every year there have been interesting surprises and good results on DNA extraction from you well-dried material.

Next year I will ask you to limit the material you send me to species of section Vaginatae. I may suggest that some common species of the Vaginatae be omitted as well. I’l let you know.

My very best wishes for your holidays and 2020,


Thank you again, Geoff.
By: R. E. Tulloss (ret)
2015-09-18 15:16:12 MDT (-0600)

Very best,