- Proposed
- Under Assessment
- NTPreliminary Assessed
- 4Assessed
- 5Published
Agaricus bohusii Bon
- Scientific name
- Agaricus bohusii
- Author
- Bon
- Common names
csoportos csiperke
Medusa Mushroom
Pečárka Bohusova
Spindelfüßiger Champignon- IUCN Specialist Group
Mushroom, Bracket and Puffball- Kingdom
- Fungi
- Phylum
- Basidiomycota
- Class
- Agaricomycetes
- Order
- Agaricales
- Family
- Agaricaceae
- Assessment status
- Preliminary Assessed
- Preliminary Category
- NT C1
- Proposed by
- Attila Sandor
- Assessors
- Attila Sandor
- Comments etc.
- Anders Dahlberg, Daniel Dvořák, Irmgard Krisai-Greilhuber
Assessment Notes
Justification
Agaricus bohusii is an uncommon European species documented from almost all European countries. The estimated population size is just over ten thousand. The population is declining. Habitat loss and degradation, the impacts of climate change are the main factors in population decline. The estimated continuing decline exceeds 10% within the next three generations (30) years.
Taxonomic notes
Agaricus bohusii is a rare to uncommon, large, characteristic species with distinctive attributes such as the tufted occurrence, radicant stipe base, scaly cap surface, and a fibrous ring. (Kibby 2007, Albert et al. 2011) The species is named after G. Bohus, a Hungarian mycologist.
Why suggested for a Global Red List Assessment?
Agaricus bohusii is an impressive species that develops fruit bodies in tufted groups in forests, parks, and roadsides. Widespread but uncommon. Distinctive attributes, such as tufted occurrence and a fibrous superior double ring, make this species easy to identify, so reliable occurrence data are likely available.
Geographic range
A. bohusii is a European species with occurrence records from almost all European countries, from Scandinavia to the Mediterranean, from Spain to Russia (GBIF 2026). Occurrences reported from the USA, South Africa, and Australia cannot be confirmed.
Population and Trends
The estimated population size of A. bohusii is just over ten thousand, declining. The species is red listed in Bulgaria (CR) (Gyosheva et al. 2006) and Austria (NT) with an anticipated population decline. A. bohusii is legally protected in Hungary.
Population Trend:
Habitat and Ecology
Agaricus bohusii grows on the ground of temperate deciduous or mixed forests, shrublands, also roadsides, parks, and urban areas.
Threats
The loss and degradation of natural woody habitats, reducing relative precipitation due to climate change, and pressure from harvesting are the main threats to A. bohusii.
Conservation Actions
Habitat protection and biobanking with tested reintroduction procedures are recommended to protect the species.
Research needed
Biobanking reintroduction procedures would be implemented and tested. Ecological studies and monitoring would improve the accuracy of estimates regarding population size and dynamics, and contribute to a better understanding of habitat preferences.
Use and Trade
A. bohusii is a choice edible species.
