Agrocybe - Agrocybe praecox species cluster
Medium-sized brown mushrooms often with thin covering over the gills when young, that turns into ring around the stalk (a partial veil). Growing in wood chips. Brown spore print.
Agrocybe - Agrocybe sp
A smaller brown mushroom growing in wood chips, without a partial veil. Brown spore print. Possibly A. pediadesPsythyrella - Psathyrella sp.
A smaller, fragile brown mushroom, growing amongst woody debris in the woods. Dark brown, almost black spore print.Psathyrella - Psathyrella sp.
Unknown Mushroom
These mushrooms don't quite qualify as a nondescript brown mushrooms. Superficially, yes - but they've got a little character that makes them stand out a bit. They are of a more orangish-brown color with a distinct hump in the middle of the cap. The gills are a darker reddish-brown as was the spore print. The stalk featured a ring.
Last summer I found these same mushrooms (presumably) in the same spot. I identified them as Gypsy Mushrooms, Cortinarius caperatus, but I think that's an incorrect identification, it doesn't quite match written descriptions or photographs. Perhaps they are specimens of a mushroom called the Deadly Conocybe by some field guides, Conocybe filaris. It matches written descriptions I found in the Audubon field guide and at Roger's Mushrooms, but most pictures I found show it as a slighter looking mushroom. Plus it is described as having a movable ring; I didn't really note if the ring moved or not. Next year . . .