Lücking, R., Breuss, O., Nelsen, M. P., Navarro, E., Aptroot, A., Chaves, J. L., Trest, M. & Will-Wolf, S. 2013. Porina squamulifera (lichenized Ascomycota: Porinaceae), a new species from tropical rainforest in Costa Rica with unique thallus morphology. — Herzogia 26: 223–230.
The new lichenized fungal species Porina squamulifera is described. It differs from all other species of Porinaceae in the phyllidiate-squamulose thallus. The species is only known from rainforest in southwest and east Costa Rica. The unusual thallus is considered an adaptation to growth under low light and high humidity conditions on tree trunks in the shady rainforest understory.