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what kind of mushroom is this?


brannie

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No confident ID proposal. But it looks like the white fuzz seen on the surface nay be a secondary fungal growth, maybe Syzyrites megalocarpus. Mushroom Exper says this "fuzz" starts out yellow and becomes gray. But Champignons du Quebec shows a few photos of white fuzz.

http://www.mushroomexpert.com/syzygites_megalocarpus.html

https://www.mycoquebec.org/bas.php?trie=S&l=l&nom=Syzygites megalocarpus / Moisissure à grands sporanges&tag=Syzygites megalocarpus&gro=104

Assuming this secondary growth idea is correct, we then would like to make a guess at what type of mushroom is the the host species. The small cluster as well as the solitary one feature truncate apices; flat/planar. I think these may be bases of stems left behind when someone cut off the upper portions. My best guess here is these are stumps of some mushrooms that had been harvested, and then the remains were colonized by Syzygites. Maybe Armillaria? 

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  • 2 weeks later...

I agree, a good possibility is the mushroom "stumps" are from a harvested cluster of Oyster Mushrooms (Pleurotus). I had said "Armillaria", but what's left of the stalks seems to lack the fibrous outer skin expected with any species of Armillaria. Also, the white hairs seen on the bases (assuming they are not a secondary fungal growth) are a Pleurotus trait. Looks more like Pleurotus stumps than Armillaria stumps. 

But, with old decomposing material like this appearance may be deceptive. 

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