Observation 91438: Coprinellus micaceus (Bull.) Vilgalys, Hopple & Jacq. Johnson

When: 2012-04-01

Collection location: Richmond, Virginia, USA [Click for map]

Who: surfish

No specimen available

Growing near chicken coop around rotting logs. Moist shaded environment. Can’t ID.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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You’re right
By: Byrain
2012-04-02 14:29:52 PDT (-0700)

P. typhae is described in the Smith Psathyrella book as having “pellucid-striate when moist, somewhat plicate when faded.” Which a few other Psathyrella species share in their descriptions.

This still looks partially deliquesced/partially dried to me, you can see it in how the cap margin withering and turning darker as the spores mature.

the same page
By: Danny Newman (myxomop)
2012-04-02 14:15:04 PDT (-0700)

describes the cap of P. typhae as “somewhat pleated” a bit further down. i get what you’re getting at. i’m more drawing attention to the apparent lack of deliquescence than making a case for this looking more like Psathyrella than Coprinellus/Coprinopsis.

By: Byrain
2012-04-02 14:10:00 PDT (-0700)

P. candolleana does not have a pleated cap. Do you think I meant striate? I meant more like this http://en.wikipedia.org/wiki/Pleat , which many inky caps have, but I have not seen in Psathyrella.

Edit: Seeing your update, yeah, I did not mean a striate cap.

By: Danny Newman (myxomop)
2012-04-02 14:06:21 PDT (-0700)

from the PNWKC PSATHYRELLA page (http://www.svims.ca/council/Psathy.htm)(emphasis added):

Psathyrella candolleana (Fr.) Maire suburban Psathyrella
This species is the most common Psathyrella in North America but is variable and there are several similar species (see REMARKS). It makes sense to use Smith’s termP. candolleana ??group”. Features include cespitose growth around old hardwood stumps or buried wood, cap that is hygrophanous, honey-colored to whitish,?? striate, and may have hanging veil remnants, narrow whitish gills that become purplish brown with white edges, and whitish hollow stem that is silky-fibrillose to scurfy at top and fibrillose-scaly to appressed fibrillose in lower part. CAP 3-7(11)cm across, conic to convex when young, usually expanding to broadly convex or flat, or with obtuse umbo; hygrophanous, at first light to dark honey-color, gradually becoming dingy purplish brown at least near margin, fading to whitish or retaining tawny-buff disc; moist, smooth to slightly wrinkled, the margin striate, at first with scattered patches of fibrils or fine scales present only near margin, the margin at first with hanging veil remnants; flesh thin, fragile.

positing which striate Psathyrella this may be is out of my league, but at least one source indicates that the genus is not a stranger to cap striation. i agree that it’s overall more coprinoid than psathyrelloid, but unless conditions were especially dry, the lack of any visible deliquescence is a mark against Coprinopsis/Coprinellus.

By: Byrain
2012-04-02 13:57:49 PDT (-0700)

Do you know of any Psathyrella with a pleated cap?

these FBs
By: Danny Newman (myxomop)
2012-04-02 12:47:42 PDT (-0700)

appear to be withering as opposed to deliquescing.

Do you have a picture of the underside?
By: Alan Rockefeller (Alan Rockefeller)
2012-04-01 05:24:38 PDT (-0700)

Looks dark spored, maybe Psathyrella.

Created: 2012-04-01 05:17:41 PDT (-0700)
Last modified: 2012-04-02 14:30:00 PDT (-0700)
Viewed: 146 times, last viewed: 2017-06-30 05:13:12 PDT (-0700)
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