Observation 66056: Entoloma cinereolamellatum Largent

When: 2011-01-16

Collection location: Los Trancos Preserve, Palo Alto, California, USA [Click for map]

Who: Douglas Smith (douglas)

Specimen available

Found under live oak. Slight sweet odor.

The first micro-shot is of the cap surface at 1000x in KOH. The cap is a cutis, with rather thin hyphae, no encrusted pigments, very light intercellular pigments, clamp. cons. obs.

The second micro-shot is of spores from the gill at 1000x in KOH. The spores are angular, 5-7 sided. The apr. ave. size is 9 × 7 um.

Looking this up in Funga Nordica, for European species, it comes up as Entoloma griseoluridum. With the grey gills, but still close to E. rhodopolium. But that is a European species. Looking in Largent, with the grey gills there is Entoloma griseo-avellaneum, but this is from Wash. state, under Alder, and the spore size is slightly different. There is also Entoloma ferruginans, with grey gills. But that one is more related to E. bloxami, and should have a thick layer of gelatin ont he surface, also a strong odor of clorine. Without the strong odors, and no gelatin on the surface, and under oaks, there is Entoloma cinereolamellatum. Although this was a new species desc. by Largent, from more northern California. But it looks good, so I am going for it.

Species Lists



Proposed Names

86% (1)
Eye3 Eyes3
Recognized by sight
Used references: “Entolomatoid Fungi of the Western US”, Largent, p329
Based on microscopic features: As desc. in the text.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2011-04-22 21:31:12 PDT (-0700)
Last modified: 2011-04-22 22:38:18 PDT (-0700)
Viewed: 155 times, last viewed: 2018-04-06 04:09:25 PDT (-0700)
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