Pyrenula mamillana (Ach.) Trevis.
Fungi | Ascomycota | Eurotiomycetes | Pyrenulales | Pyrenulaceae | Pyrenula | Pyrenula mamillana
semi-exposed bark (lower trunk)
La Selva Protection Zone (Cordillera Volcánica Central Conservation Area), La Selva Biological Station: 55 km N of San Jose, Arboleda