Observation 119050: Amanita Pers.

When: 2012-08-26

Collection location: Rustler Park Campground, Chiricahua Mountains, Arizona, USA [Click for map]

Who: Andrew Heath (Quercus)

No specimen available

Proposed Names

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ill check into Validae
By: Andrew Heath (Quercus)
2012-12-06 17:24:59 CST (-0500)

I have no idea if the spores are inamyloid or not. I don’t have access to melzers even if i had kept some of these. Im going on the written description you linked. As i mentioned the cap color is a discrepancy for me, but the description of stipe, volva and annulus were good matches.

Hmm. I guess this is either a somewhat unusual (stocky and pallid)…
By: R. E. Tulloss (ret)
2012-12-06 15:37:29 CST (-0500)

xylinivolva or something that is new to me or that I’ve forgotten or …

How about a species in sect. Validae? Did you have a particular reason for thinking the pictured material had inamyloid spores?

Very best,


Your right..
By: Andrew Heath (Quercus)
2012-12-06 14:23:19 CST (-0500)

Found both growing within 40 yds of eachother in a stand of primarily doug fir that survived the fire. A. xylinivolva seems likely. I didnt feel the cap was particularly yellow tinted, however the stipe flares at the apex, was finely shaggy on the lower half, and a cottony piece of either volva or annulus fell off the bulb area when i picked it.

The two new pictures have a pantherina-type ocreate volva.
By: R. E. Tulloss (ret)
2012-12-05 17:23:19 CST (-0500)

The first two pictures either have a thin, membranous, limbate volva…or a partial veil fell down the stem and is sitting at the top of the bulb.

In the Chiricahuas, the single species that was commonly called “gemmata” in the five years in which I participated in the Chiricahua Mycoflora Project proved to be Amanita xylinivolva or something that is not morphologically distinguishable from the latter.

There is more than one pantherinoid entity in the Chiricahuas and similar montane habitats in the SW U.S. and neighboring similar ecosystems in Mexico. One of the pantherinoid taxa has a pale creamy cap, often with a darker center. I gave it the code-number name Amanita sp-AZ07. The other pantherinoid taxon that I know from mostly north of the Sky Island mountains is A. ameripanthera (a provisional name).

What I’ve managed to put on-line about these taxa is found here:




Names that have (in my opinion) been misapplied to these taxa in SW literature are pantherina, multisquamosa, cothurnata, and velatipes.

For comparison with A. xylinivolva, see


which has a stronger yellow component in the cap.

Are there any remnants of Doug Fir in the Rustler Park area?

Very best,


By: Andrew Heath (Quercus)
2012-12-05 15:58:29 CST (-0500)

Its bad up there.. A few pines barely made it. Bracken ferns have come back in the areas of high intensity burn, and we had a INCREDIBLE bloom of mountain wildflowers due to the fire. Entire mountainsides appeared purple from 10+miles due too the amount of Sand verbena. The USFS botanist was very hopeful and happy with the revegetation. Honestly, those mountains needed to burn.

I was too shy/unfarmiliar too say it without a double-check, but A. gemmata was my best guess.

looks gemmatoid to me.
By: Debbie Viess (amanitarita)
2012-12-05 15:36:18 CST (-0500)
By: Debbie Viess (amanitarita)
2012-12-05 15:34:09 CST (-0500)

there were some pines left at Rustler Park after that terrible fire in the Chiracahuas??!

good to know. what does it look like up there, anyway, vegatatively speaking?

By: Andrew Heath (Quercus)
2012-12-05 15:29:17 CST (-0500)

I don`t know my way around Amanita too well, ill see if i can find something similar. Cap color was creamy with a underlying green/olive tint. Ill add two more photos.

I’m sure I’ve seen this, Andrew.
By: R. E. Tulloss (ret)
2012-12-05 15:02:45 CST (-0500)

My problem is understanding the cap color. (I think because of glare and/or the fading of cap pigment from sunlight at the elevation of Rustler Park.)

What color did you consider the cap to be? Did you have a feeling for what the species might be similar to within Amanita?

Very best,


Created: 2012-12-05 14:46:58 CST (-0500)
Last modified: 2012-12-05 14:47:00 CST (-0500)
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