Observation 83305: Lyophyllum P. Karst.
When: 2011-11-25
No herbarium specimen

Notes: Hoping for a spore drop. On ground near lake under pine/oak.

Maybe Lyophyllum? Maybe Tricholoma?

Proposed Names

18% (2)
Recognized by sight
-4% (2)
Recognized by sight
64% (4)
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Recognized by sight

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Tough one
By: Irene Andersson (irenea)
2011-11-29 01:14:36 PST (-0800)

If not blackening or with farinaceous or rancid smell/taste – with that kind of spores, I’d guess something in the decastes group. They don’t always grow fasciculate, sometimes solitary (shimeji in particular). But I’m not sure if it’s a blackening one or not..

Thank you everyone for the input.
By: Dave W (Dave W)
2011-11-28 18:00:22 PST (-0800)

I returned to the spot where I made the collection, but there were no more mushrooms of this type. Actually, the “one shot deal” quick fruiting seems to support the Lyophyllum proposal.

Looked at a gill edge.
By: Dave W (Dave W)
2011-11-27 07:11:03 PST (-0800)

Spreading away from the edge and out into the KOH solution the spores appear to be in the range 4-6 × 3-4.5 with 1 < q < 1.4; broadly elliptical to subglobose with lots of small ones appearing virtually globose. (These are presumably all spores… I haven’t often looked for spores by examining a gill edge). Newly attached photo shows area near mounted gill edge; mushroom beginning to air dry.

Spores appear to be not angular. Adnate/slight decurrent gill attachment a bit unusual for what I’d expect with our local Entolomas (except for E. abortivum).

Odor nil and taste non distinct.
By: Dave W (Dave W)
2011-11-26 06:07:57 PST (-0800)

Also, looks like no spores dropped. I’ll see if I can tap a few onto a slide. Also, I’ll put a gill under the scope.

Warm weather the next few days may bring out a few more.

Context pure white. Gill edges blunt (as seen with hand lense), almost squared, with little or no darkening.

By: Irene Andersson (irenea)
2011-11-26 00:52:10 PST (-0800)

is very likely. A difficult group, but some of them have quite different spore size and shape. Taste/smell could be diagnostic too.

Created: 2011-11-25 21:08:15 PST (-0800)
Last modified: 2011-11-29 02:01:36 PST (-0800)
Viewed: 111 times, last viewed: 2016-10-25 23:51:47 PDT (-0700)
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