Observation 27952: Bolbitius vitellinus (Pers.) Fr.

When: 2009-11-09

Collection location: San Pablo Reservoir, Contra Costa Co., California, USA [Click for map]

Who: Richard Sullivan (enchplant)

No specimen available

I thought it was Bolbitius vitellinus but the gills are the wrong color. Growing on a piece of decomposed wood. Under valley oaks, buckeye, Umbellaria ( bay )

Proposed Names

-95% (4)
Recognized by sight: slimy yellow cap, stem. solitary.
Based on chemical features: Taste and odor were mild.
87% (4)
Eye3 Eyes3
Recognized by sight: Later as the specimen dried , the gills turned rusty brown and so were the spores. Also it was growing on wood so hygrocybe seemed all wrong. It is also too early for hygrocybe here it seems to me.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Dan Molter (shroomydan)
2009-11-10 06:45:09 PST (-0800)

That really does look like Hygrocybe!

By: Erin Page Blanchard (CureCat)
2009-11-10 00:41:41 PST (-0800)

You’re right, it is an unusual form for B. vitellinus, though the close up of the cap really gives in away with the dimpled pileus.

Created: 2009-11-09 04:55:33 PST (-0800)
Last modified: 2009-11-09 04:55:33 PST (-0800)
Viewed: 68 times, last viewed: 2017-06-06 03:05:37 PDT (-0700)
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