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

Melanotrema platystomum (Mont.) Frisch

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Scientific name
Melanotrema platystomum
(Mont.) Frisch
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 byt its broad and carbonized columella, carbonized ascomata and a thallus covered by a protocortex, and small ascospores (Frisch & Kalb 2006).

Synonymy: Ocellularia platystoma (Mont.) Zahlbr., Cat. Lich. Univers. 2: 598 (1923) [1924]; Thelotrema platystomum Mont., Annls Sci. Nat., Bot., sér. 2 19: 79 (1843).

Why suggested for a Global Red List Assessment?

Due to all the previous information this species might be considered as Data Deficient (DD) until a better understanding.

Geographic range

This is species is known in 12 countries. In Brazil, three occurrences to this species are known according to GBIF database.

Population and Trends

There are 25 records in GBIF database, distributed in French Guiana (5 records), Brazil (3 records), Costa Rica (3 records), and the other occurrences are distributed in small percentages.

Population Trend:

Habitat and Ecology

This species occurs in Pantropical areas. In Brazil, this species can be found at the Atlantic Rainforest in Northeast Brazi, and Amazon Rainforest in North according to GBIF.

Subtropical/Tropical Moist Lowland ForestSubtropical/Tropical Moist Montane Forest


In Brazil, this species can be founded in Atlantic and Amazon Rainforest that are biomes that still suffer 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.

Site/area protectionResource & 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