• Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Ocellularia praestans (Müll. Arg.) Hale

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Scientific name
Ocellularia praestans
(Müll. Arg.) Hale
Common names
IUCN Specialist Group
Assessment status
Proposed by
Isaias de Oliveira Junior
Comments etc.
Isaias de Oliveira Junior

Assessment Notes

Taxonomic notes

This species is known by its dense cortex thallus, erumpent to prominent apothecia, with pore-like opening, columella usually present and carbonized, large, usually muriform, and hyaline ascospores, psoromic acid present (Caceres, 2007, Rivas Plata et al., 2012).

Synonymy: Thelotrema praestans Müll. Arg., J. Linn. Soc., Bot. 30: 453 (1895).

Why suggested for a Global Red List Assessment?

Due to all the previous information, this species might be considered as Least Concern (LC) until a better understanding.

Geographic range

This is species is known in 15 countries. In Brazil, 22 occurrences to this species are known, located in Southeast, North, and Northeast of Brazil according to GBIF database.

Population and Trends

There are 153 records in GBIF database, distributed in The United States of America (43 records), Dominica (24 records), Brazil (22 records), and the other occurrences are distributed in small percentages.

Population Trend:

Habitat and Ecology

This species is well distributed in Tropical areas, in Dry to Montane Rainforest. In Brazil, this species can be found at the Atlantic Rainforest in Northeast, and Southeast of Brazil.

Subtropical/Tropical Dry ForestSubtropical/Tropical Moist Lowland ForestSubtropical/Tropical Moist Montane Forest


In Brazil, this species is founded in Atlantic Rainforest that is a biomes that still suffers anthropic actions in special wildfire, natural and criminal caused, and area suppression.

Tourism & recreation areasSmall-holder farmingAgro-industry farmingSmall-holder plantationsAgro-industry plantationsRoads & railroadsUnintentional effects (species being assessed is not the target)Increase in fire frequency/intensityHabitat shifting & alteration

Conservation Actions

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.

Resource & habitat protectionHabitat & natural process restorationFormal education

Research needed

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

TaxonomyPopulation size, distribution & trends

Use and Trade



Country occurrence

Regional Population and Trends

Country Trend Redlisted