Observation 92190: Phaeocollybia pleurocystidiata Norvell & Redhead

When: 2012-04-07

Collection location: Snow Peak, Lacomb, Oregon, USA [Click for map]

Who: Britney Ramsey (Riverdweller)

No specimen available

Will check for warty, lemon shaped spores, pronounced straight apical beak, absence of clamp connections…

Proposed Names

2% (3)
Recognized by sight: (Phaeocollybia californica complex)greasy cap and stem, orange-brown to red-brown, gills darkening rusty orange-brown, found with Pseudotsuga menziesii (Douglas-fir).
Used references
55% (4)
Eye3 Eyes3
Recognized by sight: Spring fruiting, color, size. Check for “abundant pleurocystidia”
Used references: Phaeocollybia of the PNW, Norvell & Exeter
43% (3)
Recognized by sight: Phaeocollybia phaeogaleroides also fruits in spring and frequently grows near or among P. pleurocystidiata, but can usually be separated in the field by it darker red-brown to chestnut-brown often striate cap, and is easily separated microscopically by its longer, paler, punctate-roughened, elliptic spores with low snubbed apical beaks, abundant clamp connections, and cylindric to filamentous cheilocystidia, (Norvell(11))

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
looks like this is it until next year
By: Britney Ramsey (Riverdweller)
2012-04-09 14:59:41 CDT (-0500)

I had thrown away the last little bits of this collection. I had looked at spores yesterday on the large one (showing gill shot in photo) so I posted those. I dumped coffee grounds over what was left :(

Thank you everyone for the great information and suggestions for ID. Douglas and Debbie, thank you for your time with explanations and how-to’s.

I’m with Deb, I can’t wait until my next Phaeocollybia collection!

Squash mounts…
By: Douglas Smith (douglas)
2012-04-09 14:32:38 CDT (-0500)

Actually I have a problem with squash mounts and pleurocystidia. Usually there are lots and lots of cheilocystidia, and then you squash the mount, and most of these break off. Then you let up, and the reagent rushes into all the breaks in the gill tissues, and usually sucks in a number of the cheilocystidia. This just confuses the issue, with cystidia randomly distributed through the gill, and then I just confuse myself, is that a pleurocystidia or not?

I just plop down the gill, and look at the middle of the face lying there. You see a sea of basidia looking up at you, so I focus on that. Then I pull the focus up so I am looking at a sea of spores, and the basidia are out of focus. Then you keep going a little, until the spores are just out of focus. If there are pleurocystidia, then you will see randomly distributed cells in focus. If you move the focus up and down slightly, you will see the pleurocystidia go in and out of focus, and they are obvious at that point, with the basidia and spores out of focus. This takes just a few minutes of looking really. I’ve got an example of this I just posted on a P. bipellis obs.

This works well in 90% of the time, there are some where the pleurocystidia aren’t long enough to get past the spores, then you different mount, where you get the gill in cross section. But that takes time to make well.

Once you get the exsitence down, then to get a photo of the cystidia, then you squash it separate the cells.

will do deb
By: Britney Ramsey (Riverdweller)
2012-04-09 14:23:48 CDT (-0500)

I will try it again now…what dishes and laundry…pfft..

clean or not…
By: Debbie Viess (amanitarita)
2012-04-09 14:10:09 CDT (-0500)

try a gill smash mount. the spore shape should tell you lots.

By: Debbie Viess (amanitarita)
2012-04-09 14:06:14 CDT (-0500)

but hey, doesn’t Norvell’s Phaeocollybia book rock??! I can’t WAIT for the Phaeocollybia to return to CA, so I can jump right into this ID fray, book in hand.

Lorelei did an amazingly good job…more details than ya know what to do with, but that is very much a GOOD thing. Color photos, range maps and tables, micrographs, extensive descriptions, worldwide comparisons, oh Momma! ;)

If only we had its like for the rest of the genera…

perhaps a mixed collection
By: Britney Ramsey (Riverdweller)
2012-04-09 12:49:19 CDT (-0500)

One specimen dried darkly red-brown the other dried to a light tan. These sat in the fridge for 3 days, not sure I can really get a clean section.

Created: 2012-04-07 19:04:21 CDT (-0500)
Last modified: 2012-04-10 08:13:22 CDT (-0500)
Viewed: 138 times, last viewed: 2017-10-19 00:05:29 CDT (-0500)
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