Observation 22698: Psathyrella (Fr.) Quél.

When: 2009-06-30

Collection location: Western Australia, Australia [Click for map]

Who: amanda (amanda)

No specimen available

This one has come up in native wood chip mulch laid 2 yrs ago. There is a great deal of mycelia in this wood chip also some straw and pulverised cow poo (not much). I think it has grown because of the 100mm of rain we have received over last week – unusual as we are a semi-arid zone (200 – 500mm ann rainfall) and we have been droughty over last 4 yrs. We are about 450km’s north of Perth on the coast (Geraldton).
It is strongly hygropahenous, smell minimal (faintly mushroomy), brown spore print, smooth and fragile stipe. The peanut for size comparison (stipe got bent in these photos) There are many WA natives growing in this location. All prunings get chucked onto the mulch too.

I thought it may be a Psathyrella gracilis – but I don’t know much about mushies.

I am hoping it is a primary decomposer as I want to innoculate my orchard etc with it…I am not keen on buying in anything not native to my area.


Proposed Names

33% (5)
Recognized by sight: Fragile cap and stem, dark spored on wood chips
-6% (2)
Recognized by sight

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

= Observer’s choice
= Current consensus


Add Comment
I think it’s Psathyrella spp too
By: amanda (amanda)
2009-07-06 19:43:11 CDT (-0500)

Thanks so much for your help everyone – Roy Halling confirms it’s eating wood which is what I am after at the end of the day.
Great website too… so glad I found it.

spore colour
By: Erin Page Blanchard (CureCat)
2009-07-05 04:05:03 CDT (-0500)

So the spore colour was described to me as “just a boring medium brown”, so that casts some doubt on Conocybe.

I am sticking with Psathyrella as the most likely identity until someone suggests something more fitting, or puts up a good argument against Psathyrella.

Spore colour
By: Erin Page Blanchard (CureCat)
2009-07-04 05:29:14 CDT (-0500)

Amanda, would you describe the spores as rusty brown, chocolate brown, purple brown, light or dark brown..?

As for Descolea, I don’t see the resemblance.

Thanks Amanda
By: Roy Halling (royh)
2009-07-03 09:03:48 CDT (-0500)

for the pics from WA! Descolea has a skirt-like partial veil, and is a ECM (ectomycorrhizal) genus. Amanda mentioned the stipe got bent, so that’s not a veil in image 1,2. I think all images are of the same conocyboid thing.

By: Michael W (Michael Wallace)
2009-07-03 07:09:27 CDT (-0500)

Species of Descolea belong in the Cortinariaceae family.

As far as I am informed they are saprotrophic and related to Conocybe/Pholiotina.
By: Gerhard Koller (Gerhard)
2009-07-03 03:48:06 CDT (-0500)
my two cents
By: Noah Siegel (Noah)
2009-07-02 22:26:25 CDT (-0500)

I do agree that pics 3 and 4 look like a Conocybe. but the first two Descolea, maybe. Pholiotina; I could probably get talked into accepting. But Psathyrella… doesn’t look right.

Are Descolea saprotrophic?

Sorry gals and guys
By: Gerhard Koller (Gerhard)
2009-07-02 19:47:01 CDT (-0500)

I can’t agree. The first two pics show something that is neither Psathyrella nor Stropharia – I think it’s Descolea.
As for the fourth pic this seems to be a classic Conocybe and is another mushroom than the first two….
But they are all saprotrophic so who cares?

By: Erin Page Blanchard (CureCat)
2009-07-02 16:39:00 CDT (-0500)

These look like Psathyrella to me as well.

Stropharia are not nearly so delicate, they tend to have a tough,fibrous rather than brittle, watery stipe. Definitely not Stropharia.

Conocybe or Pholiotina look similar to this, but the overall colour is more orange, especially the lamelle.

Are the first two specimens
By: Gerhard Koller (Gerhard)
2009-06-30 15:57:01 CDT (-0500)

and the fourth one really the same?

It’s not Psathyrella gracilis
By: Gerhard Koller (Gerhard)
2009-06-30 07:59:20 CDT (-0500)

this looks like a Conocybe/Pholiotina thing or Stropharia … a very difficult group of mushrooms and impossible to determine by the naked eye unless you are an expert dealing solely with this groups

Created: 2009-06-30 06:20:42 CDT (-0500)
Last modified: 2009-06-30 06:20:42 CDT (-0500)
Viewed: 248 times, last viewed: 2019-01-29 09:33:04 CST (-0600)
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