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Naemateloma capnoides
Yellow mushroom.
Woods.
Our dog almost ate this mushroom!
I have to agree that it doesn't look just like Naemateloma (Hypholoma); the gills aren't really dark enough to indicate a brown spore color, although the rest of it is right. Will try to think of something better.
It's not Naemateloma capnoides. Unfortunately I can't help you with a better name for it...