Revista Inst. Café São Paulo: 186 (2010).
Synonyms: Index Fungorum
Protolog: Thallus tenuis, rimosus-areolatus; areolae ad ca. 0.50 mm latae; blastidia et soredia destituta. Apothecia margines colorati similis disco vel thallo. Ascosporae octonae, in modo B evolutae, formae Pachysporaria II, (12.5-)15.5-16.5(-19.5) µm x (7.0-)8.5-9.5(-11.5) µm.
Type locality: USA, South Dakota, Minnehaha County, outcropping of Sioux quartzite, E of the Sioux River, 2 mi south of Hwy. 38, between Rowena and East Sioux Falls, ca. 430 m, 31.12.1956, W. A. Weber S8490 (COLO - holotype, CANL, DUKE, FH, MIN, MSC, US, WIS - isotypes).
Type locality coordinates: 43°31'39?N, 96°39'7? W; 43.5275, -96.651944.
Molecular barcode: Data lacking.
Thallus: thin, dark grey to greenish-brown, rimose-areolate; areoles to ca. 0.50 mm wide, margins sometimes raised; surface plane to minutely verrucose, matt; margin determinate; prothallus absent or thin, entire of sometimes fimbriate, brownish; vegetative propagules absent. Apothecia sometimes innate, usually ....
Photobiont: Data lacking.
Chemistry: Spot tests all negative; secondary metabolites not detected (Sheard 2010: 187).
Ecology: On silicious rocks, in moist environments ....
Distribution: Database
Molecular data: Genbank
Mycobank: Mycobank
Note:
Pictures: Tropical Lichens
Type. U.S.A. South Dakota. Minnehaha Co., outcropping of Sioux quartzite, E of the Sioux River, 2 mi south of Hwy. 38, between Rowena and East Sioux Falls, ca. 1300 ft, 31 December 1956, W.A. Weber S8490 (COLO - holotype, CANL, DUKE, FH, MIN, MSC, US; WIS - isotypes).