Observation 59673: Amanita phalloides (Vaill. : Fr.) Link
When: 2010-11-21
Herbarium specimen reported

Notes: the potential host tree is what made this sighting interesting. It was under a cultivated conifer that I didn’t recognize, with dramatically pale green needles. I included a photo of its needles and cone, in case there is a botanist/arborist in the house! This was fruiting directly under this conifer, along with several other mushroom species. No other mushrooms present in the general area, or under the distant oak itself.

Although there was a small (OK, maybe not so small, just compared to the redwoods on either side of it!) live oak in the area, it was quite far away…I paced off 85 feet from this sighting to the oak tree base.

New host for an old nemesis?

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Recognized by sight: darker than usual cap, otherwise…

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no confirmation as to host tree…
By: Debbie Viess (amanitarita)
2011-11-04 10:15:34 CDT (-0400)

I did dig up as much of the mycelium as I could, but awkwardly, since I was after all in a very public graveyard. In fact, the tip of my heavy metal trowel broke off as I did so! Don’t wanna go there…

This phalloides was sent to Ben Wolfe at Harvard for MR analysis, but he was in the final stages of his PhD and it may have fallen by the wayside.

I know where it lives, though…

probably Atlas cedar…
By: Thea Chesney (thea)
2011-11-03 23:36:25 CDT (-0400)

I agree with your second idea, Christian: this is probably Cedrus atlantica ‘glauca’ based on the noted pale foliage and the relative shortness of the needles. Cedrus deodara tends to have longer needles and I don’t know of a glaucous cultivar. Both species are commonly planted all over northern CA, sometimes together.
I’ve found a Paxillus and Hebeloma crustiliniforme growing with one or both species in Berkeley. Amanita muscaria loves some Deodars on the Berkeley campus.
In any case, cool/disturbing find!

I agree with Debbie
By: Christian (Christian Schwarz)
2011-11-03 22:40:34 CDT (-0400)

my other guess would be Atlas Cedar – Hebeloma crustuliniforme grows with this tree in Watsonville.

About that tree…
By: Debbie Drechsler (debdrex)
2010-11-24 14:51:01 CST (-0500)

I’m not a botanist or arborist but am pretty sure it’s a Cedrus deodara. We have many in Santa Rosa CA. I wasn’t sure about those cones but here’s a link to one with the same cone: http://tinyurl.com/2vu72n4

Haven’t seen A. phalloides in association with them here, though.

Created: 2010-11-24 12:52:56 CST (-0500)
Last modified: 2011-04-25 13:14:51 CDT (-0400)
Viewed: 171 times, last viewed: 2016-10-23 10:19:31 CDT (-0400)
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