I'm sorry to say no, I don't. I admit that the closest in all my references is Shaggy Scalycap but I am still concerned about the gill shape. Perhaps Wander could investigate a little further?
Shaggy Scalycap: flesh yellowish - darkening; smell and taste of radish; gills pale yellow at first becoming brown, adnate; spore print brown. However, even that doesn't necessarily separate it from other scalycaps.