Celothelium is easily recognized lichenized pyrenocarpous ascomycetes due to its long-filiform ascospores, crustose, smooth whitish thallus, and by its sideways grouped ascomata.

This is species is known in 11 countries, with 43 records in GBIF database. Also, due to this species relation to Pantropical region this species might be considered as Near Threatened.

This is species is known in 11 countries. In Brazil, five records to this species are known, located in the Southeast and Northeast of Brazil according to GBIF database.

There are 43 records in GBIF database, distributed in Costa Rica (17 records), Brazil (5 records),  Colombia (5 records), and the other occurrences are distributed in small percentages.

This species is related mainly to Pantropical, often on branches, smooth bark, and shrubs in Rainforest. In Brazil, This species can be found at the Atlantic Rainforest.

In Brazil, this species can be founded in Atlantic Rainforest that is a biome that still suffers 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. Formal education to the population that lives near those areas and the park managers might be a start to change the situation.

Research that are orientated to taxonomy and exploration to new sites need to be stimulated until a better understanding of this species status.