Fissurina instabilis (Nyl.) Nyl.
Fungi | Ascomycota | Lecanoromycetes | Ostropales | Graphidaceae | Fissurina | Fissurina instabilis
fully shaded lower trunk
Las Tablas Protection Zone (La Amistad Pacífico Conservation Area), Fila Cedro, Las Alturas Station: 25 km NE of San Vito near Alturas, surroundings of station and trail into forest