Observation 139033: Pleurotus (Fr.) P. Kumm.
When: 2013-07-07
(35.6695° -84.2371° 259m)
No herbarium specimen

Notes: On hardwood log in forest with Acer, Carya, Quercus, Liriodendron tulipifera, Cornus florida, Juglans nigra, etc.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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By: Christine Braaten (wintersbefore)
2013-07-07 18:32:47 PDT (-0700)

Last I heard, I think P. ostreatus and P. pulmonarius were for the most part indistinguishable (microscopically and macroscopically), but represented two biological species as they could not mate, one mostly being a “winter” oyster, the other mostly a “summer” oyster, but that their fruiting times overlapped as well.

Edit: these are also way too large for Pleurocybella, the largest one around 20cm.

My undersranding of Oyster Mushrooms…
By: Dave W (Dave W)
2013-07-07 18:23:50 PDT (-0700)

is that they represent a species complex, with P. ostreatus one of these species. In some cases, knowing the exact type of wood is helpful.

Given the occurrence on hardwood and the robust stipes, I think we may rule out Pleurocybella.

Created: 2013-07-07 18:04:31 PDT (-0700)
Last modified: 2013-07-07 18:18:49 PDT (-0700)
Viewed: 24 times, last viewed: 2017-06-16 03:37:40 PDT (-0700)
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