Absconditella Vezda
- Absconditella amabilis T. Sprib.
Verrucaria abdita Servít
Verrucaria abditula Hue
Verrucaria aberrans Garov.
Verrucaria abscondita Nyl.
Verrucaria acharii Fée
Verrucaria acrocordiiformis (Anzi) Stizenb.
Verrucaria acrotella Ach. 1803, (also see Species Fungorum: Verrucaria acrotella)