Feddes Repert. 41: 77 (1936).

Synonyms: Index Fungorum

Protolog: Thallus leviter flavido-cinerascens, modice crassus, expansus, passim rimulosus sed non areolatus, irregulariter verruculosos-inaequalis, opacus, isidiis sorediisque destitutus, hypothallo indistincto. ... . Vereinigte Staaten: Baltimore, Co.; an Felsen am rechten Ufer des "Gunpowder River", 7.VI.1910, Charles C. Plitt".

Type locality: USA, Maryland, Baltimore County, on rocks at the right shore of Gunpowder River, xxx m, 7.6.1910, Charles C. Plitt (HBG ?).

Barcode: Data lacking.

Coordinates: Data lacking.

Thallus: Data lacking.

Photobiont: Data lacking.

Chemistry: No lichen substances.

Ecology: Saxicolous.

Molecular data: Genbank

Distribution: Database

Note: "The Gunpowder River is a 6.8-mile-long (10.9 km)[1] tidal inlet on the western side of Chesapeake Bay in Maryland, United States. It is formed by the joining of two freshwater rivers, Gunpowder Falls (often referred to locally as "Big Gunpowder Falls") and Little Gunpowder Falls" (Wikipedia 19.1.2015). Baltimore County comprises the suburbs of Baltimore.