This species is known by its corticolous, pale mineral grey to olivaceous green thallus, a byssoid whitish prothallus, apothecia and pycnidia not seen (Aptroot et al., 2009).
Current Name: Crypthonia albida (Fée) Frisch & G. Thor, Mycol. Progr. 9(2): 290 (2010)
Synonymy: Herpothallon albidum (Fée) Aptroot, Lücking & G. Thor, in Aptroot, Thor, Lücking, Elix & Chaves, Biblthca Lichenol. 99: 29 (2009); Hypochnus albidus Fée, Essai Crypt. Exot., Suppl. Révis. (Paris): 13 (1837).
Due to all the previous information this species might be considered as Data Deficient (DD) until a better understanding.
This is species is known in 13 countries. In Brazil, one occurrence to this species is known, located in the South of Brazil according to GBIF database.
There are 14 records in GBIF database, distributed in Costa Rica (6 records), Australia (2 records), Venezuela (2 records), and the other occurrences are distributed in small percentages.
This species occurs in Pantropical areas, in shady microhabitats in lowland to lower montane rainforests. In Brazil, this species can be found at the Atlantic Rainforest in Northeast, and South of Brazil, and at the Amazon Rainforest in North of Brazil.
In Brazil, this species commonly founded in Atlantic and Amazon Rainforest that are biomes that still suffer anthropic actions in special wildfire, natural and criminal caused, and area suppression.
In Brazil, the records are related to preserved areas, but unfortunately, those spaces still being affected by negatives influences. So, formal education to the population that lives near those areas and the park managers can start to change the situation.
Actions that are orientated to taxonomy and exploration to new sites need to be stimulated until a better understanding of this species status.