Pileus yellow becoming white over the disc, striate, viscid.
Lamellae BRIGHT chrome yellow, broadly attached.
Stipe milky white, nearly translucent, viscid.

As noted in Darv’s observation, this mushroom is very rare.

First collection: Smith in 1937 (published 1941 in Lloydia) – Prairie Creek State Park, Orick, CA
Second collection: Mycoblitz 5, 2007 – Pt. Reyes National Seashore, Marin Co., CA
This collection: 2009, UCSC, Santa Cruz CO., CA


Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz
Copyright © 2009 Christian F. Schwarz

Proposed Names

94% (3)
Used references: North American Species of Hygrophorus. Smith and Hesler, 1963

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Add Comment
I looked up this species in the voucher photos for Mycoblitz, too…
By: Debbie Viess (amanitarita)
2009-02-21 20:17:22 CST (-0500)

Darvin’s fresh material with its yellow cap had faded to white, losing most of the yellow color. Interesting. We’ll definitely want to pick any whitish Hygrocybe mushrooms under redwood and check for those brilliant yellow gills!

Rare….or rarely collected? Thanks for the head’s up, Christian! And it’s looking to be a good spring for hygrocybes…

Oohh… nice one.
By: Douglas Smith (douglas)
2009-02-21 04:29:02 CST (-0500)

Cool find there, nice one… I only saw this once, and it was the collection that Darvin posted. I took my own photo of that collection, but I’ve never found this one myself…

By: Christian (Christian Schwarz)
2009-02-21 02:32:06 CST (-0500)

Forgot to mention –
In a gulch surrounded by many Hygrocybe punicea (interesting!), nearest trees were oak and tanoak (including one killed by SODS); Douglas-Fir and redwood farther away.

and it looks like you have the only decent photo of it, for the three collections…
By: Debbie Viess (amanitarita)
2009-02-21 00:43:11 CST (-0500)
very cool find, Christian!
By: Debbie Viess (amanitarita)
2009-02-21 00:38:00 CST (-0500)

and an unmistakeable macro-morphology…