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

Chapsa alborosella (Nyl.) Frisch

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Scientific name
Chapsa alborosella
(Nyl.) 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 by its thallus grey-green, ascomata conspicuous with a pale brown to greyish disc, hyaline and transversely septate ascospores, fusiform to clavate.

Why suggested for a Global Red List Assessment?

This is species is known in 13 countries, with 66 records in GBIF database. Also, this species occurs on the bark of trees in Warm-temperate to Tropical Rainforest. In Brasil, this species records are related to Atlantic Rainforest and Amazon Rainforest. Due to all the previous information this species might be considered as Vulnerable (VU) until a better species understanding.

Geographic range

This is species is known in 13 countries. In Brazil, sixteen occurrences to this species are known, located in the Southeast, North, and Northeast of Brazil according to GBIF database.

Population and Trends

There are 66 records in GBIF database, distributed in Brazil (16 records), Costa Rica (16 records), Colombia (8 records), French Guiana (6 records each), and the other occurrences are distributed in small percentages.

Population Trend:

Habitat and Ecology

This species is related to Warm-temperate to Tropical Rainforest. In Brazil, This species can be found at the Atlantic Rainforest and Amazon Rainforest.

Subtropical/Tropical Moist Lowland ForestSubtropical/Tropical Moist Montane Forest


In Brazil, this species can be founded in Atlantic Rainforest and Amazon Rainforest both biomes 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 correlated 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