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

Adustomyces lusitanicus (Torrend) Jülich

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Scientific name
Adustomyces lusitanicus
(Torrend) Jülich
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Preliminary Assessed
Preliminary Category
Proposed by
Susana C. Gonçalves
Susana C. Gonçalves, Ireneia Melo, Susana P. Cunha
Comments etc.
Anders Dahlberg

Assessment Notes

The replacement of old olive groves by new plantation hints at criterion A (clearly there is an ongoing decline of its substrate)., but with so few known sites it looks it might well just be a rare species or under recorded? We need to get more information about search efforts for the species across its distribution range to be able to estimate population size.


Not enough data to establish population size.

Taxonomic notes

Obligate synonyms of this taxon are Cerocorticium lusitanicum (Torrend) Jülich & Stalpers and Radulomyces lusitanicus (Torrend) Hjortstam (MycoBank, 2023).

Why suggested for a Global Red List Assessment?

With the replacement of old olive groves by new plantations, it is becoming difficult to find Adustomyces lusitanicus (Torrend) Jülich, a decomposer species known from Portugal, Spain, France, Greece and Morocco and always found on the dead wood of old olive trunks.

Geographic range

For many years, the species was only known from Portugal, where sporadic collections were recorded, and from Morocco. Later, its distribution was extended to Spain and Greece (Melo, 1992). According to GBIF, it is also found in France (two records, one in Corsica).

Population and Trends

The species is known from approximately XX sites:

GBIF: 1 in Greece (Corfu), 2 in Morocco, 2 in France, 2 in Spain ;
For Portugal: 6-7 documented in Melo (1992) not sure if there are two sites in Lisboa, Lumiar or if they correspond to the same one) + 1 site in Santarém from GBIF

Population Trend:

Habitat and Ecology

Adustomyces lusitanicus is a poor decomposer, causing a white rot on old stumps or dead parts of old trunks of living trees, almost always Olea europea.

Mediterranean-type Shrubby Vegetation


Conservation Actions

Research needed

Further research is needed to ascertain the population size of the species.

Use and Trade


Country occurrence

Regional Population and Trends

Country Trend Redlisted