Microporus affinis is a fungus species in the family Polyporaceae.

It was first described in 1826 as a species of Polyporus by German botanists Carl Ludwig Blume and Theodor Nees.

[1] Otto Kuntze transferred it to Microporus in 1898.

[2] It is a widespread polypore that is common in tropical and subtropical regions of both the Northern and Southern Hemispheres.

This Polyporales-related article is a stub.