Observation 299859: Agaricus subrutilescens (Kauffman) Hotson & D.E. Stuntz
When: 2017-11-22
Collection location: Patrick’s Point State Park, Humboldt Co., California, USA [Click for map]
No specimen available
Images
User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote. | |||||||||
Vote | Score | Weight | Users | ||||||
---|---|---|---|---|---|---|---|---|---|
I’d Call It That | 3.0 | 0.00 | 0 | ||||||
Promising | 2.0 | 0.00 | 0 | ||||||
Could Be | 1.0 | 5.03 | 1 | (ckleine) | |||||
Doubtful | -1.0 | 0.00 | 0 | ||||||
Not Likely | -2.0 | 0.00 | 0 | ||||||
As If! | -3.0 | 0.00 | 0 | ||||||
Overall Score sum(score * weight) / (total weight + 1) |
0.83 | 27.80% |
Comments
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Missed opportunity
By: Chris Kleine (ckleine)
2017-11-29 08:23:49 CST (-0500)
Unfortunately, I didn’t collect anything and I’m back in Utah now. I wasn’t aware of the differences in A. subrutilescens for alder vs. conifer habitats, but I will look for specimens in the future.

Interesting
By: Rick Kerrigan (rwkerrigan)
2017-11-26 11:15:08 CST (-0500)
Kauffman originally described the species from two habitats, one of which was among alders along the coast. Sometimes the alder forms look a bit different from the classical ones with conifers in the Coast Ranges. Someday, someone will get some ITS DNA sequences from specimens under alders (hint).
Thanks, Chris. Any possible differences resolving along habitat lines are simply possibilities at this time. What I saw, long ago, planted the seed of a question. Now A. thiersii, often with pines, has been clarified out of “A. subrutilescens” in an old, collective sense. There may be other similar things still awaiting clarification (esp. with alders on the Northern CA coast, perhaps with oaks near Santa Barbara).