Verrucaria nigrescens is a widespread species of crustose lichen in the family Verrucariaceae.

It was first formally described as a new species by Christiaan Hendrik Persoon in 1795.

[1] The lichen produces a very dark brown thallus that grows on rocks; the medulla is black.

There are black perithecia that resemble buried dots, and which measure 0.15–0.3 mm in diameter.

This Eurotiomycetes-related article is a stub.