Observation 132908: Gymnopus (Pers.) Roussel

When: 2013-05-03

Collection location: Rooster Rock State Park, Multnomah Co., Oregon, USA [Click for map]

Who: Daniel B. Wheeler (Tuberale)

No specimen available

Found on rotting Bigleaf Maple (Acer macrophylla) log. Under moss, sandy silt on top, downed log nearby/attached. Caespitose clumps, fungi 2 inches tall (base of stipe to cap top). Cap black on edge, rapidly changing to dark brown and lighter brown in center of umbonate cap. STIPE: creamy to slightly orange. Small scales scattered along stipe: brown. GILLS: white becoming dark brown in age. Spore print whitish.


Fungi 2 inches tall, clustered.
Edge of gills blackish, turning dark brown and finally lighter brown in center. Gills white when young, dark brown in age.
Older gills.
Dark brown cap in age, lighter in youth.

Proposed Names

29% (1)
Recognized by sight
72% (2)
Recognized by sight
23% (2)
Used references: I-MWS49213.jpg Photo seems to capture stipe and gill characteristics.
-5% (2)
Recognized by sight

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

= Observer’s choice
= Current consensus


Add Comment
By: Irene Andersson (irenea)
2013-05-05 18:16:13 BST (+0100)

I have looked at descriptions and other pictures and do not beleive that the yellow-capped earleae on MO are ID:d correctly… :-/


After accessing collections on MO of G. earliae
By: Daniel B. Wheeler (Tuberale)
2013-05-05 17:04:04 BST (+0100)

stipes, cap color, and gills do not match.

By: Daniel B. Wheeler (Tuberale)
2013-05-05 16:57:34 BST (+0100)

has identified many fungi.

Perhaps best to ask her about her collections?

Just added two photos of dried collection. The gills are very red-brown sometimes toning to black, as dried. I wondered about the true color of the stipe: dark brown area near stipe base may be caused by handling, but not area near cap.

Cap color has not been affected by handling, just by the drying process.

Fresh and dried color does not seem to match most identified collections of Gymnopus. Most Gymnopus appears to have cream-colored caps. These are cream colored only in immature specimes.

By: Irene Andersson (irenea)
2013-05-05 09:59:41 BST (+0100)

the Burke herbarium in Washington has two collections labeled Collybia verna from Oregon (Portland, Multnomah, collected by L. Norvell)
- and two from Washington. The annotations on the Washington collections say “not necessarily correct name” :-)

Gill color today almost black as dried.
By: Daniel B. Wheeler (Tuberale)
2013-05-04 23:08:42 BST (+0100)

Not sure if G. vernus is found in Oregon Irene. Interesting possibility, isn’t it?

The gill colour
By: Irene Andersson (irenea)
2013-05-04 15:56:26 BST (+0100)

doesn’t look right for ocior – but G. vernus has brownish gills. Do you have them in Oregon?

Created: 2013-05-03 22:58:01 BST (+0100)
Last modified: 2013-05-05 17:00:42 BST (+0100)
Viewed: 84 times, last viewed: 2020-07-26 09:13:20 BST (+0100)
Show Log