Observation 300905: Inocybe (Fr.) Fr.

Notes:
Unusual poisoning in which 15 yo small dog was found collapsed while playing with mates. Ingestion of mushrooms was suspected; spores found on mushrooms in vomit look like Inocybe but could be another mushroom. As Inocybe is toxic, this is suspected. Spores look the same color in three stains, in one photo appear to have a dark brown color. Club wants to sequence the mushroom for identification to species level. Note list of possible contaminants after the photo of the mushroom sample.

Species Lists

Images

in Cotton Blue with color correction to gray background
in Congo Red with color correction to gray background
in Congo Red with color correction to gray background
in Cotton Blue with color correction to gray background
in Cotton Blue with color correction to gray background
Conidia with bacteria
in Lugols with color correction to gray background
in Lugols with color correction to gray background. Included for the color of the spore: brown
Dog vomited this
Suspected contaminate – dividing protozoa
Suspected contaminate – dividing protozoa
Suspected contaminate – dividing protozoa
Suspected contaminate – dividing yeast or protozoa
Suspected contaminate – zygomycetes
Suspected contaminate – zygomycetes
Suspected contaminate – zygomycetes
Suspected contaminate – zygomycetes

Proposed Names

29% (1)
Used references: How to Identify Mushrooms to Genus III: Microscopic Features by Largent

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= Observer’s choice
= Current consensus

Comments

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Second photo from the top…
By: Dave W (Dave W)
2017-12-20 20:44:25 CST (-0600)

spore in the middle looks like an Entoloma spore, angular with a nucleus (oil drop? I never see “oil drop” written in a description of Entoloma spores. But the centrally delineated area is a typical trait of Entoloma spores). The other two spores in this photo look like Inocybe spores, nodulose. But, the one in the middle may appear as it does because of perspective. I think most (if not all) of the spores seen are Inocybe spores. I wonder if being (partially) digested could alter spore morphology?

Color of spores look pretty light.
By: Ron Pastorino (Ronpast)
2017-12-20 20:30:12 CST (-0600)

Did you rule out some kind of Entoloma?

Created: 2017-11-29 19:18:14 CST (-0600)
Last modified: 2017-12-02 20:19:07 CST (-0600)
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