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

Coenogonium interplexum Nyl.

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Scientific name
Coenogonium interplexum
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 filamentous, prostrate and effuse yellow-green thallus, rounded yellow-orange apothecia, ellipsoid, and 1-septate ascospores, 6-9 × 2-3 μm. Coenogonium interplexum forms the center of another group of taxonomically difficult, filamentous species of the genus, including also C. disjunctum, C. implexum, C. pannosum, and C. velutinum (Rivas Plata et al., 2006).

Why suggested for a Global Red List Assessment?

This is species is known in 23 countries, with 153 records in GBIF database. Also, this species occurs in Tropical area. In Brazil, this species records are related to Atlantic Rainforest and Amazon Rainforest. Due to all the previous information this species might be considered as Near Threatened (NT) until a better understanding.

Geographic range

This is species is known in 23 countries. In Brazil, two occurrences to this species are known, located in North, Northeast, and South of Brazil according to GBIF database.

Population and Trends

There are 153 records in GBIF database, distributed in The United States of America (54 records), Brazil (34 records), Australia (8 records), Chile (8 records), and the other occurrences are distributed in small percentages.

Population Trend:

Habitat and Ecology

This species is corticolous and sometimes foliicolous in understory of Lowland Montane Rainforest. 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.

Subtropical/Tropical Moist Lowland 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.

Resource & habitat protectionSite/area managementHabitat & 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