Phytologia 28, 5: 480 (1974).

Basionym: Parmelia confoederata W.L. Culb., Am. J. Bot. 48, 2: 169 (1961).

Synonyms: Index Fungorum

Protolog: Thallus parvus, 1-4 cm latus; laciniae angustae, angulares, appressae, 1-2 mm latae. Superficies superior cinereo-alba vel leviter adusta, levigata vel leviter rugosa, nec sorediata nec isidiata; pycnidia dispersa, immersa, 96-99 µ lata, ostiolo solo visibili; superficies inferior nigra, marginibus castanea, rhizinis nigris aequaliter distributis, simplicibus vel aliquoties furcatis, ad marginem velut fimbriae apparentibus. Cortex superior 6-16 µ latus; medulla 51-87 µ; cortex inferior 9-13 µ. Apothecia parva, primo cupuliformia et demum applanata, 1-3.5 mm diametro. Sporae 8-nae, ellipsoideae 3-5 x 5-8 µ. Cortex superior KOH+ flavens, Ca(OCl)2-; medulla KOH-, Ca(OCl)2+ rubens. Materiae chimicae: acidum lecanorinum et atranorinum.

Protolog type data: Holotypus: Carolina Septentrionalis. Culberson 9010 (DUKE).

Type locality: USA, North Carolina, Brunswick County, Shallotte, W. L. Culberson 9010 (DUKE - holotype, FH, NY, US - isotypes).

Type locality coordinates: 33°58'37.31? N, 78°23'33.06?W; 33.97703, -78.392517.

Molecular barcode: Data lacking.

Thallus: small, 1-4 cm broad; lobes narrow, angular, appressed, 1-2 mm broad. Upper surface ashy white or lightly tinged with brown, smooth or slightly wrinkled, neither sorediate nor isidiate; pycnidia scattered, immersed, 96-99 µ broad, only the ostiole visible; lower surface black, brown ... (Culberson 1961: 169).

Photobiont: Data lacking.

Chemistry: Upper cortex KOH+ yellow, Ca(OCl)2+ red, p-phenylenediamine. Lecanoric acid and atranorin (Culberson 1961: 169).

Ecology: On the bark of trees, but not pine (Culberson 1961: 169).

Distribution: Endemic to the southeastern coastal plain from North Carolina to Alabama and Florida (Culberson 1961: 169).Database

Molecular data: Genbank

Mycobank: Mycobank

Note:

Pictures: Tropical Lichens