Smithonian Contr. Bot. 16: 22 (1974). Protolog: Thallus corticola, pallide cinereo- vel brunneo-albidus, epiphloeodes, continuus, aetate rimosus, nitidus, usque ad 12 cm latus; medulla omnino .
Protolog: Thallus corticola, pallide cinereo- vel brunneo-albidus, epiphloeodes, continuus, aetate rimosus, nitidus, usque ad 12 cm latus; medulla omnino .