Brittle stem, pinking edge to gills.
Caution: Do NOT use iSpot to identify fungi to eat!
Some fungi are very poisonous so a mistaken ID could have serious consequences.
No interactions present.
There are a few Psathyrella with a red gill edge.
Agreed. These were growing close to these: http://www.ispot.org.uk/node/304262, which I'm fairly sure ARE P corrugis. Not that means that they are definitely the same species, of course.
As you have done the work on ones close by I am happy to agree with your first choice. It is just that some people see the red edge and immediately give an id without further investigation.
There is a key to the red edged Psathyrella here
Thanks Mal, That's a REALLY useful page! I don't know if it is advertised on here elsewhere for budding mycologists, but anyway I'll add it to my forum topic on keys.
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