Strand-Egerling vs Grayish Button Lichen

Agaricus litoralis compared with Diplotomma alboatrum

Taxonomic Classification

Rank	Strand-Egerling	Grayish Button Lichen
Kingdom same	Fungi (Pilze)	Fungi (Pilze)
Phylum	Basidiomycota (Ständerpilze)	Ascomycota (Schlauchpilze)
Class	Agaricomycetes (Mushrooms)	Lecanoromycetes (Lecanoromycetes)
Order	Agaricales (Champignonartige)	Caliciales (Caliciales)
Family	Agaricaceae (Agarics)	Caliciaceae
Genus	Agaricus (Button Mushrooms)	Diplotomma
Species	Agaricus litoralis	Diplotomma alboatrum

Evolutionary Relationship

Strand-Egerling and Grayish Button Lichen share a common ancestor at the Kingdom level: Fungi. (Pilze)

Conservation Status

Strand-Egerling

LC — Least Concern

Grayish Button Lichen

LC — Least Concern

Physical Characteristics

Attribute	Strand-Egerling	Grayish Button Lichen
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Strand-Egerling

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Grayish Button Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States.

Strand-Egerling

Agaricus litoralis, the coastal mushroom, is a saprotrophic agaric fungus in the family Agaricaceae occurring in sand dunes, coastal grassland, and sandy soil habitats along the coasts of northwestern Europe, with confirmed records from Belgium, Denmark, Norway, and Sweden. The genus Agaricus contains the familiar cultivated button mushroom (A. bisporus) along with hundreds of wild species, and members are characterized by a ring on the stem and browning, discoloring, or non-discoloring flesh when cut, features used in field identification. Agaricus litoralis is a medium-sized mushroom producing white to cream-colored caps 4–10 centimeters across with pinkish then dark brown gills and a stout stem with a double ring, fruiting in sand dune hollows and the grassy margins of coastal habitats from summer through autumn. The specific epithet litoralis refers directly to its coastal habitat preference. As a saprotroph, it decomposes organic matter in the sandy soil substrate, releasing nutrients back into the ecosystem. The species is classified as Least Concern by the IUCN, being relatively widespread in suitable coastal sandy habitat across northwestern Europe. Like many coastal fungi, it is specifically adapted to the nutrient-poor, well-drained, alkaline conditions of stabilized sand dune systems.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden