Observation 82898: Arcangeliella desjardinii Thiers

When: 2011-11-20

Collection location: Jackson Demonstration State Forest, Mendocino Co., California, USA [Click for map]

Who: Ryane Snow (snowman)

No specimen available

Species Lists



Proposed Names

75% (3)
Eye3 Eyes3
Recognized by sight: found in North Coast Coniferous Forest ~6 miles inland

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

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
no need to miss out….
By: Debbie Viess (amanitarita)
2011-12-20 14:23:29 CST (-0500)

there are lots of forays to this area.

next up on the calendar is ACCF at Albion. Lotsa PNW folks coming down for this foray with a taxonomy focus. A few spaces still available:


Come fall, there are forays by the FFSC, MSSF and David Arora, in addition to the University sponsored one the weekend before Thanksgiving (normally at well beyond carrying capacity! but heck, the kids don’t mind a little crowding…).

Or, you could just hunt the woods on your own, if you get a permit first from the Forest Service. But more fun to go with others, sleep cheap and get fed. Not to mention guides to the good habitats and the camaraderie of like-minded individuals…

By: Daniel B. Wheeler (Tuberale)
2011-12-20 14:04:22 CST (-0500)

I’ve been missing out on a prime hunting area. Sigh.

not just UC Berkeley…
By: Debbie Viess (amanitarita)
2011-12-20 13:47:33 CST (-0500)

but UC Davis, SFSU, David Arora’s Thanksgiving foray group and various CA mushroom clubs have all been hunting Jackson State Forest for decades, with a keen eye for specimens as well as edible species. That translates to hundreds of people combing these woods for interesting fungi every year.

We see these secotioid forms on a regular basis, some years are better than others.

Almost all Arcangeliella rarely collected.
By: Daniel B. Wheeler (Tuberale)
2011-12-20 13:27:35 CST (-0500)

Oregon apparently has several species, many collected by Helen Gilkey and James Trappe. But not common at all in our area. Of course, the old-growth forests typical of Helen Gilkey’s collecting are few and far between now. Dr. Trappe’s collecting further afield, but still not what I would call common.

What is the predominant canopy tree from Jackson State Forest? Is this a frequently collecting site for U.C. Berkeley? Perhaps that is why this species is so well known in CA, but almost unknown from anywhere else?

on the other hand, I don’t see any staining on this fruit body, Ryane.
By: Debbie Viess (amanitarita)
2011-12-20 12:09:05 CST (-0500)

did you see some at the time, or after collection?

if unstaining, it could be Arcangeliella variegata instead.

commonly collected.
By: Debbie Viess (amanitarita)
2011-12-20 12:05:03 CST (-0500)

not rare at all, at least not in JSF.

By: Noah Siegel (Noah)
2011-11-23 13:20:56 CST (-0500)

seems really closely related to Lactarius pallidiolivaceus, you can find patches that have normal gills mixed with half wrinkled gills to completely distorted gills.

Not that rare?
By: Douglas Smith (douglas)
2011-11-23 13:12:07 CST (-0500)

I don’t know if it is that rare? I think I’ve seen it almost every year for the past 6 or so… although, not a lot each time. This past weekend students brought in quite a few, there were like 10 caps there on that table or so. I think there are a few collections in the Thier’s herbarium by now.

many specimens found
By: Ryane Snow (snowman)
2011-11-23 02:22:02 CST (-0500)

students from Tom Bruns class at U.C. Berkeley collected many specimens last weekend

If true,
By: Daniel B. Wheeler (Tuberale)
2011-11-23 02:07:58 CST (-0500)

very rare. A voucher collection would have helped.

Created: 2011-11-20 21:11:56 CST (-0500)
Last modified: 2013-07-22 16:29:21 CDT (-0400)
Viewed: 165 times, last viewed: 2018-07-21 02:17:19 CDT (-0400)
Show Log