When: 2010-09-19

Collection location: Ravalli Co., Montana, USA [Click for map]

Who: decax

No specimen available


Copyright © 2010 Salvia_Antics
Copyright © 2010 Salvia_Antics
Copyright © 2010 Salvia_Antics
Copyright © 2010 Salvia_Antics
Copyright © 2010 Salvia_Antics
Copyright © 2010 Salvia_Antics
Copyright © 2010 Salvia_Antics

Proposed Names

27% (1)
Recognized by sight: Cap: 9.5cm, thin patch like veil remnants, partial viel hanging off edge of cap.
Stipe: 13cm from basal bulb to where cap connects, 1.5cm thick where cap connects, 2.5cm at top of basal bulb, gray ring, flesh doesn’t bruise, basal bulb abrupt and is soft almost cottony soft, Stipe also seems to be hollow and contains small circular platforms, could be insect related.
60% (2)
Recognized by sight: Cap colors in illustrations and descriptions of A. porphyria vary a bit from place to place. It will probably be useful to do population studies using molecular tools to see if all the “porphyrias” of the Northern Hemisphere are conspecific. – R

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= Observer’s choice
= Current consensus


Add Comment
Yes for 52461
By: R. E. Tulloss (ret)
2010-09-19 22:03:12 -05 (-0500)

Yes, 52461 has a gray underside to the partial veil. I think that could be called porphyria. The other specimen is rather old. I think it is possible that it also is porphyria. Possible.


By: decax
2010-09-19 21:41:30 -05 (-0500)

A. porphyria is probably the other amanitas that i found that we haven’t named yet? http://mushroomobserver.org/53011?q=1lBZ and http://mushroomobserver.org/52461?q=1lBZ

By: R. E. Tulloss (ret)
2010-09-19 21:17:44 -05 (-0500)

Thank you for the level of detail you provided. The soft bulb that is subabrupt and has a slightly raised margin around the top part plus the GRAY partial veil and the brown pigment on the cap arranged in what appear to be subsurface fibrils radiating from the cap’s center (this patter of pigment makes the cap “virgate”) support Amanita porphyria as a reasonable guess for these photographs. The second photograph provides the most useful detail in a single shot.


Created: 2010-09-19 19:23:44 -05 (-0500)
Last modified: 2010-09-19 21:41:45 -05 (-0500)
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