about 150 accepted species Verrucaria is a genus of lichenized (lichen-forming) fungi in the family Verrucariaceae.

[1] The genus was circumscribed by German botanist Heinrich Adolph Schrader in 1794, with Verrucaria rupestris assigned as the type species.

In his brief diagnosis of the genus, Schrader mentioned the more or less spherical (subglobose), closed ascomata, and the crustose thallus.

[2] The genus name is derived from the Latin word verruca (meaning "wart") and the suffix -aria (meaning "belonging to" or "possession").

[3] As of 2015, there were 16 Verrucaria species classified as marine species: V. adguttata, V. allantoidea, V. ceuthocarpa, V. corallensi, V. ditmarsica, V. erichsenii, V. halizoa, V. halochlora, V. microsporoides, V. paulula, V. psychrophila, V. sandstedei, V. serpuloides, V. sessilis, V. subdiscreta, and V. thalassina.