Phytologia 28(5): 487 (1974).
Basionym: Parmelia dissensa T. H. Nash, Bryologist 76: 214 (1973).
Synonyms: Index Fungorum
Protolog: "Thallus adnatus, saxicola, 4-8 cm latus, flavescenti-viridis, lobis subirregularibus, contiguis, 2-4 mm latis, aetate rugosis vel late plicatis, superne planus, soredii isidiisque destitutus, cortex superior 16-22 µm crassus, stratum gonidiale 45-75 µm crassum, medulla alba, 170-230 µm crassa, cortex inferior 15-20 µm crassus, subtus niger, sparsissime rhizinosus, rhizinis crassis, simplicibus. Apothecia ignota; pycnidia aliquantum numerosa, microconidiis 4-6 µm longis.
Photobiont: Probably Trebouxia.
Chemistry: Cortex K-, P-, C-, KC- (usnic acid); medulla K-, P-, C+ faintly yellow, KC+ faintly yellow (hypoprotocetraric acid) (Nash 1973: 214).
Ecology: On rock.
Molecular data: Genbank
Distribution: Database
Note:
Chemistry: Cortex K-, P-, C-, KC- (usnic acid); medulla K-, P-, C+ faintly yellow, KC+ faintly yellow (hypoprotocetraric acid).
Holotype: UNITED STATES. Arizona. Graham Co.: on granite, 17 km S of Safford adjacent route 366, lower slopes of Pinaleno Mountains in desert grassland area (4000') with scattered junipers, 7 April 1972, T. H. Nash 4168 (HERB. ARIZONA STATE UNIV.; isotype US)".
Type locality: USA, Arizona, Graham County, 17 km S of Safford adjacent route 366, lower slopes of Pinaleno Mountains in desert grassland area with scattered junipers, on granite, 1350 m, 7 April 1972, T. H. Nash 4168 (ASU - holotype; US - isotype).
Barcode: Data lacking.
Coordinates: Data lacking.