Psathyrella bipellis is a species of mushroom in the family Psathyrellaceae.
The species was originally described in 1884 by French mycologist Lucien Quélet, under the name Psathyra bipellis. Alexander H. Smith transferred it to the genus Psathyrella in 1946.
The purplish cap is up to wide, sometimes with white flecks of veil around the margin. The narrowly adnate gills are tannish. The stem is up to 9 cm long and the spore print is purplish-black. It resembles P. subpurpurea.
It can be found in wood debris and grass in North America.