Observation 31883: Hygrophorus roseibrunneus Murrill

When: 2010-01-10

Collection location: Bon Tempe Reservoir, Marin Co., California, USA [Click for map]

Who: Ron Pastorino (Ronpast)

No specimen available

These look like Hygrophorus bakerensis but they were growing under Live Oak and I got no odor of almonds, which is one that I usually can sense.
The caps were viscid.
The spores were approx. 6.9-8.0 X 4.1-5.3 microns, white and non amyloid.
Dimitar, on his Mushroom Hobby website lists a local Oak loving Hygrophorus aff. arbustivus. It’s a European species, but I believe the spores are larger?



Proposed Names

57% (1)
Recognized by sight
-26% (3)
Used references: Source: Bessette A, Miller OK Jr, Bessette AR, Miller HR. (1995). Mushrooms of North America in Color: a Field Guide Companion to Seldom-Illustrated Fungi. pp. 54–56.
H. tennesseensis is a common species found in California from September to February, has a farinaceous odor, elliptical spores measuring 6-9 × 4.5-6 microns, inamyloid; distinguished from H. bakerensis by odor and bitter-tasting flesh (bakerensis has a mild taste). The tree host doesn’t seem to match though, so I rated it as “could be”.
-17% (2)
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2010-01-11 19:58:48 PST (-0800)
Last modified: 2014-12-16 14:18:56 PST (-0800)
Viewed: 86 times, last viewed: 2018-01-15 22:29:58 PST (-0800)
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