Incredibly long stipe — 22 cm.


In Douglas fir woods. Possibly Amanita pachycolea

Proposed Names

82% (1)
Based on chemical features: joined nrITS-LSU sequence of over 2000 characters

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
Quite a surprise. A 100% match to an ITS sequences from “sp-NW04.”
By: R. E. Tulloss (ret)
2020-10-03 06:20:15 JST (+0900)

We now have an nrLSU sequence for the probable species. And photographs to boot. This was a good one.

I will be updating the following WAO page:

Thank you for this one.

Very best,


If it’s not pachycolea,…
By: R. E. Tulloss (ret)
2018-11-14 07:25:47 JST (+0900)

… it’s going to be something interesting no matter what. :)


By: R. E. Tulloss (ret)
2018-11-14 07:24:32 JST (+0900)

I never would go for absolute certainty unless the gene sequences agree with a sequencing of a type. There is are a large number of undescribed species in section Vaginatae. We don’t know who they are, where they are, or who they might pretend to be. So it’s best to collect material, write description (macro and micro) and sample the specimens for DNA.

I’m always up for working on dried material of the Vaginatae.

Very best,


By: ellenkr (ellenkr)
2018-11-14 06:01:03 JST (+0900)

I am seeing that others have found A. pachycolea in our county and that may be a better fitting diagnosis for this very tall specimen.

Looks like the inner tips of marginal striations are in a dark band on the cap.
By: R. E. Tulloss (ret)
2018-11-14 00:15:43 JST (+0900)

This, along with the mushrooms size, suggests you might have Amanita pachycolea.

Very best,