Observation 218639: Pleurotus ostreatus group
When: 2015-10-09
(39.7407° -123.6317° 711m)
No herbarium specimen

Notes: Habitat notes: Growing on top of felled hardwood stump within a mixed coniferous-broadleaf (Black Oak, Doug.-Fir, Bay Laurel, Madrone) forest

Key characters used to ID: The “classic” pleurotoid form. Decurrent gills down truncate eccentric stem. Monomitic consistency. Microscopic characters: “Spores 7.5–9 (–11) × 3–4.5 μm, ellipsoid, smooth, hyaline, inamyloid, white to pale pinkish white in deposit” (Desjardin and Wood, 2015).

Images

563971
Pleurotus “oyster mushroom”
563970
Pleurotus “oyster mushroom”
563972
Pleurotus “oyster mushroom” spore print
564577
Pleurotus spores in Melzer’s reagent [40× objective lens × 10× optical lens = 400× total magnification]

Proposed Names

79% (1)
Eye3 Eyes3
Recognized by sight: Brian Bowers
Used references: Tom Bruns

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Eye3 = Observer’s choice
Eyes3 = Current consensus

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Created: 2015-10-12 15:34:43 CDT (-0500)
Last modified: 2015-10-14 00:35:11 CDT (-0500)
Viewed: 45 times, last viewed: 2016-12-04 17:24:58 CST (-0600)
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