Panaeolus semiovatus var. phalaenarum

'''Panaeolus semiovatus var. phalaenarum', also known as Panaeolus antillarum'' is a common and widely distributed small to medium sized grey mushroom which grows on dung.

''Panaeolus semiovatus var. phalaenarum is often mistaken for Panaeolus cyanescens'', and can be distinguished by the thicker cap and lack of blue bruising.

Description
''Panaeolus semiovatus var. phalaenarum'' is a medium sized mushroom which has a cap that is 4 to 9 cm, convex, white to yellowish, grows on dung and has thick stems and caps. The caps turn a silver white shiny color in age. The stem is 4 to 22 cm long and .5 to 2 cm thick, solid, sometimes slightly larger at the base. The spores are black and ellipsoid, 20 x 12 micrometres.

This mushroom prefers tropical climates.