This was a absolutely massive russula that my daughter, Ivy, found but another participant collected and brought back to the tables. I would estimate that this specimen was about 6 to 7 in wide on the cap and the stem was about an inch and a half wide and about 4 in tall. It weighed white a lot as well. One of the biggest and heaviest Russula that I've ever seen. It was found on the multi-use trail.
Growing on hardwood debris I think. Oak, hemlock, and birch present
Corrugated cap, purple tones. Hardwoods.
Mild odor and taste. Pink straining where the cap context met gills. Stem flushed with pink in areas. Cap streaked. Under rhododendron and oak
White pine dominant area. 3000+ ft elevation
This observation is being uploaded as a step in getting it sequenced; the collector is not an iNat user and sent it to me to process for DNA testing.
It was found fruiting on a piece of wild-collected driftwood that was boiled and placed in a fish tank. The fruiting appeared approximately 3 weeks after the driftwood was collected.
The second picture of the mushroom is around 12 hours after he first noticed it.
Likely not Psathyrella aquatica, most opinions on facebook were suggesting Coprinellus sect. domestici so that is my initial ID but it is for sure not confirmed that and will be sequenced soon.
Images used with permission
No discernible odor
5cm tall
Maple/birch/fir habitat