Mycotaxon 2(2): 221 (1975).
Basionym: Parmelia huachucensis Nash, Bryologist 76: 214 (1973).
Synonyms: Index Fungorum
Protolog: "Thallus adnatus, saxicola, 4-8 cm latus, viridi-flavescens, lobis angustis, linearibus, 0.3-1.0 mm latis, congestis, imbricatis, nigromarginatis, superne nitidus, levis, sorediis isidiisquedestitutus, cortex superior 12-14 µm crassus, stratum gonidiale 30-40 µm crassum, medulla alba, 60-100 µm crassa, cortex inferior 11-14 µm crassus, subtus niger, sparsissime rhizinosus, rhizinis crassis, simplicibus. Apothecia numerosa, adnata, 1-7 mm diametro, sporis octonis, 5-6 x 8-10 µm; pycnidia numerosa, microconidiis 4-7 µm longis.
Photobiont: Probably Trebouxia.
Chemistry: "Cortex K-, P-, C-, KC- (usnic acid); medulla K-, P+ golden yellow (psoromic and conpsoromic acids, and two unidentified substances)" (Nash 1973: 214). Psoromic acid, 2'-0-demethylpsoromic acid, usnic acid.
Ecology: On rock.
Molecular data: Genbank
Distribution: Arizona. Database
Note:
Chemistry: Cortex K-, P-, C-, KC- (usnic acid); medulla K-, P+ golden yellow (psoromic and conpsoromic acids, and two unidentified substances).
Holotype: UNITED STATES. Arizona. Cochise Co.: picnic area at Parker Canyon Lake at the base of the western slope of the Huachuca Mountains in a woodland area (5000') with mixed junipers and oaks, 5 April 1972, T. H. Nash 3981 (Herb. Arizona State Univ.; isotypes US, MIN, DUKE).
Type locality: USA, Arizona, Cochise County, picnic area at Parker Canyon Lake at the base of the western slope of the Huachuca Mountains in a woodland area with mixed junipers and oaks, 1650 m, 5.4.1972, T. Nash 3981 (ASU - holotype, DUKE, MIN, US - isotypes).
Barcode: Data lacking.
Coordinates: Data lacking.