Observation 18328: Leucopaxillus albissimus (Peck) Singer
When: 2004-06-23
No herbarium specimen

Notes: Caps about 2 inches wide.

[admin – Sat Aug 14 01:57:09 +0000 2010]: Changed location name from ‘Greensburg, Westmoreland Co., Pennsylvania, USA’ to ‘Greensburg, Pennsylvania, USA

Proposed Names

-20% (4)
Recognized by sight
27% (1)
Used references: Based on comments below.

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Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Got me convinced
By: John Plischke (John Plischke)
2009-02-15 04:45:12 SAST (+0200)

You have me convinced. I will start saving more collections. I have been meaning to do more microscopy. Currently ror spores I use a Nikon labophot. I also have a Bausch and Lomb Stereo zoom 7 and a Leica GZ 12.5 trinoc Stereo scopes for close ups of timy mushrooms and features.
John

Yes, of course, Lepista fits quite well too…
By: Dimitar Bojantchev (dimitar)
2009-02-14 23:12:56 SAST (+0200)

Can’t argue against Lepista irina either. We may need some divine
clairvoyance to move forward beyond that point. Unless someone
produces the material, ohh wishful thinking…

D.
Lepista irina
By: Irene Andersson (irenea)
2009-02-14 23:00:32 SAST (+0200)

is not impossible. I might have recognized it by the smell..

Something more on that.
By: Dimitar Bojantchev (dimitar)
2009-02-14 19:52:02 SAST (+0200)

Let me shed some more light here — there seem to be two distinctly
different looking forms of Rhodocollybia maculata in the Western and
Eastern USA. The link in the previous comment captured the Western
form. Mykoweb captures it too.

Now here is a photo of Rhodocollybia maculata from New York State that shows the Eastern form with CROWDED GILLS.

http://mushroomhobby.com/...

Sites like the MushroomExpert show this one, for example.

I have material from both and have not been able to fine clear micro
differences, but just to avoid confusion I’m showing both.

Now, I’m almost ready to state that we in the West have more likely misapplied the name, but now we see a similarly looking collection form out East.

Needless to say and I will repeat this ad infinitum — we need higher
quality observations in order to move forward, particularly from
“senior members” of the community.

D.
by george, i think he’s got it!
By: Debbie Viess (amanitarita)
2009-02-14 19:30:40 SAST (+0200)

notched not decurrent gills (good obsie, Dimi), clustered growth, even a bit of red-spotting on the cap of one…looks like a strong maybe for R. maculata
(and a No-way Jose for Clitocybe sp.).

and John, my friend, PLEASE start collecting and drying some of these interesting mushrooms that you so widely photograph; otherwise, they will forever remain in the realm of conjecture…

Can’t see Clitocybe. Try Rhodocollybia, Leucopaxillus…
By: Dimitar Bojantchev (dimitar)
2009-02-14 19:19:27 SAST (+0200)

More like Leucopaxillus, or I see hints of Rhodocollybia maculata in
there (=bitter). Can’t quite see the gill attachment to be quite
comfortable. Can we see a bigger photo?

Compare:

http://mushroomhobby.com/...

The observation is rather incomplete for more than a broad guess. We need to know the substrate, spore color in mass. Basic microscopy will clear the Genus very easily. You know the spiel, same story again and again.

D.
Clitocybe sp
By: Noah Siegel (Noah)
2009-02-14 16:17:24 SAST (+0200)

probably something in the C. cerussata group.

.
By: Erin Page Blanchard (CureCat)
2009-02-14 11:07:49 SAST (+0200)

As suggested, the most probable suspects are Leucopaxillus albissimus and Clitocybe nebularis.
Any scent??
Was the flesh very firm and tough or brittle and feeling some what hollow?

Several options
By: Irene Andersson (irenea)
2009-02-14 10:52:51 SAST (+0200)

The amount of litter at the base makes me think this is a saprobic species: Clitocybe, Lepista, Leucopaxillus?
Some of these can be hard to tell apart even with a microscope.. Knowing taste, smell, spore colour is important too.

Created: 2009-02-14 09:39:33 SAST (+0200)
Last modified: 2010-08-14 03:57:09 SAST (+0200)
Viewed: 163 times, last viewed: 2016-10-25 08:18:09 SAST (+0200)