Dune Brittlestem vs Fly Agaric

Psathyrella ammophila compared with Amanita muscaria

Key Differences

• Dune Brittlestem is Endangered while Fly Agaric is Least Concern.

Taxonomic Classification

Rank	Dune Brittlestem	Fly Agaric
Kingdom same	Fungi (菌界)	Fungi (菌界)
Phylum same	Basidiomycota (担子菌門)	Basidiomycota (担子菌門)
Class same	Agaricomycetes (真正担子菌綱)	Agaricomycetes (真正担子菌綱)
Order same	Agaricales (ハラタケ目)	Agaricales (ハラタケ目)
Family	Psathyrellaceae	Agaricaceae (Agarics)
Genus	Psathyrella	Amanita (Amanitas)
Species	Psathyrella ammophila	Amanita muscaria

Evolutionary Relationship

Dune Brittlestem and Fly Agaric share a common ancestor at the Order level: Agaricales. (ハラタケ目)

Conservation Status

Dune Brittlestem

EN — Endangered

Fly Agaric

LC — Least Concern

Trend: Stable →

Physical Characteristics

Attribute	Dune Brittlestem	Fly Agaric
Diet	—	Decomposer
Average Lifespan	—	1 years
Average Length	—	20 cm
Average Weight	—	100 g

Habitat & Geographic Range

Dune Brittlestem

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Fly Agaric

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Europe (4 countries), North America (United States), Oceania and the Pacific (New Zealand), and South America (Brazil, Chile, Colombia).

Fly Agaric

ベニテングタケ（Amanita muscaria）は地球上で最も象徴的で広く知られる菌類であり、北半球の北方林全域に白いいぼのある鮮やかな赤い傘を広げる。童話のような外見とは裏腹に、ムシモールやイボテン酸などの強力な向精神性化合物を含み、中程度の毒性がある。シラカバ、マツ、トウヒと重要な外生菌根共生関係を形成し、無機栄養素と炭素を交換することで北方林の栄養循環に不可欠な役割を担っている。

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden