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

Amauroderma intermedium (Bres. & Pat.) Torrend

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Scientific name
Amauroderma intermedium
(Bres. & Pat.) Torrend
Common names
IUCN Specialist Group
Mushroom, Bracket and Puffball
Assessment status
Proposed by
Vitor Lima
Comments etc.
Vitor Lima

Assessment Notes

Taxonomic notes

Originally described as Ganoderma intermedium by Bresadola and Patouillard based on a specimen from Brazil. Also known as Amauroderma rude var. intermedium J.S. Furtado.

Why suggested for a Global Red List Assessment?

Although not a rare species, it occurs in endangered domains. We, thus, suggest this species to be categorized as Near Threatened.

Geographic range

GBIF database shows records from 6 countries in tropical America and Europe. Originally described from Brazil, there are several record in South and Central America. The only exception is one record from UK, which seems improbable.

Population and Trends

In GBIF there are 80 records (72 as Amauroderma intermedium (Bres. & Pat.) Torrend, and 8 as A. rude var. intermedium.
From Brazil, most record were made in the Amazon forest.

Population Trend: Uncertain

Habitat and Ecology

Soil dweling species, associated with root of trees.

Subtropical/Tropical Moist Lowland Forest


Although widespread in tropical America (probably not elsewhere), it is locally threatened by intense anthropogenic activities, especially in the Atlantic Forest (Brazil).

Housing & urban areasAgro-industry farmingAgro-industry grazing, ranching or farmingIncrease in fire frequency/intensityHabitat shifting & alterationDroughts

Conservation Actions

It is dependent of large and old growth forest fragments. Thus, preservation of significant forest fragments and proper management fundamental to the conservation of Amauroderma intermedium population.

Site/area protection

Research needed

Most records of Amauroderma were made with morphological identification of collected specimens, and this genus is rather difficult to delimit with morphological features only. Revision of specimens in the light of moder taxonomy is needed.

TaxonomyPopulation size, distribution & trendsThreats

Use and Trade


Country occurrence

Regional Population and Trends

Country Trend Redlisted