Observation 120829: Gomphidius oregonensis Peck

When: 2012-12-13

Collection location: Windy Hill Preserve, Portola Valley, California, USA [Click for map]

Who: Leslie Flint (Leslie F)

No specimen available

Cap entirely black and most of stem and gills; stem snapped like chalk. Wondering what species.

Proposed Names

7% (2)
Recognized by sight: shape, decurrent gills; stem snapped sharply; no latex (but old)

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Christian (Christian Schwarz)
2012-12-22 19:34:01 PST (-0800)

The gills are deeply decurrent – not a feature associated with typical Russula.
The gills are black – when gills are deeply decurrent and black (at least in coastal CA) you are basically guaranteed to be looking at a Gomphidius.

Other features – shiny cap (was viscid)
Gooey ring has dried out, but the annular zone still visible on the stipe.

The stipe snapping like chalk was a fluke (which happens fairly frequently on firmer non-Russulaceae agarics).

If you pick Gomphidius the stipe base is reliably bright yellow in all but one species here.

Curious – why do you say that?
By: Leslie Flint (Leslie F)
2012-12-22 18:47:56 PST (-0800)

Created: 2012-12-22 18:32:47 PST (-0800)
Last modified: 2012-12-22 18:34:58 PST (-0800)
Viewed: 21 times, last viewed: 2017-06-15 02:23:12 PDT (-0700)
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