These are tiny brown mushrooms growing in crack within a wooden pole. The caps are conic with striate margins and rugose surface. There is no partial veil, and the gills are adnate, narrow and even. The stem is centered and smooth, and there is no bulb of volva. This mushroom kind of looks like a Coprinus because the caps are cone shaped and the stipes are very thin. These mushrooms are also found on the base of old wood and rotting stumps, so maybe it would also grow on a wooden pole like the one in the picture too.
