• Proposed
  • Under Assessment
  • DDPreliminary Assessed
  • 4Assessed
  • 5Published

Craterellus costaricensis Qiu X. Wu

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Scientific name
Craterellus costaricensis
Qiu X. Wu
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Preliminary Assessed
Preliminary Category
Proposed by
Adam Liddle
James Westrip, Adam Liddle

Assessment Notes


Known from only a very small number of records, Craterellus costaricensis is currently only known from a small area of Costa Rica. The potential host species (Quercus copeyensis = Q. bumelioides) has a far wider range, and so the mushroom could too. At the moment there is insufficient data to allow a clear Red List assessment to be made, and this species is assessed as Data Deficient. Further research is required to get a better idea of the distribution of the fungus, and that will allow for a better estimation of its extinction risk.

Taxonomic notes

Why suggested for a Global Red List Assessment?

Chanterelle species

Geographic range

This species is known to occur within Costa Rica. Three specimens appear to be known, with it having been found at Villa Mills and also at Estrella, Cartago province (Wu and Mueller 1995, GBIF 2022). The potential host species (Quercus copeyensis = Q. bumelioides) is widespread in Central America and so the mushroom could have a far wider distribution than currently known.

Population and Trends

The overall population size and trend are uncertain, although it potentially could be stable at the known sites due to the absence of any obvious major threats occurring there.

Population Trend: Uncertain

Habitat and Ecology

Collections have been made from soil in Quercus copeyensis (=Q. bumelioides) forest (Wu and Mueller 1995).

Subtropical/Tropical Moist Montane Forest


The known records come from well protected forest, and there has been little loss of forest cover in the general area based on global forest watch data (see world resources institute 2022). The full extent of the range of this mushroom is uncertain, though, and so it may face some threats elsewhere.

Conservation Actions

This species has been collected from the La Amistad protected area (see Protected Planet). No conservation actions can be recommended at this time without further research.

Research needed

Further research into this species’ habitat preferences, distribution, and whether it is under threat is required in order to accurately classify this species.

Population size, distribution & trendsLife history & ecologyThreats

Use and Trade


Country occurrence

Regional Population and Trends

Country Trend Redlisted