Phylum: Basidiomycota	Class: Agaricomycetes
Order: Agaricales	Family: Agaricaceae
Species: Cystoderma amianthinum (Scop.) Fayod

Synonyms:

Agaricus amianthinus Cystoderma amianthinum f. rugosoreticulatum Cystoderma amianthinum f. rugulosoreticulatum Lepiota amianthina Lepiota amianthina var. alba Lepiota granulosa var. amianthina

Common Name:

Earthy Powdercap

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Photographer: © David Mitchel

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View this species in its UK context on the NBN Atlas

Associated Species (where recorded) & number of records: Poa (14) Carex (12) Fagus sylvatica (4) Poaceae (4) Musci (2) Fraxinus excelsior (1) Acanthaceae (1) Larix (1)

Habitat (where recorded) & number of records: Neutral grassland: semi-improved (40) Acid grassland (22) Acid grassland: semi-improved (20) Acid grassland: unimproved (11) Calcareous grassland: unimproved (10) Woodland (10) Calcareous grassland (8) Woodland: broadleaved, semi-natural (8) Woodland: mixed (8) Built up area, domestic (7) Parkland and scattered trees (7) Sand-dune: dune grassland (7) Woodland: coniferous, plantation (7) Festuca ovina-Agrostis capillaris-Galium saxatile grassland (6) Grassland and marsh (5) Woodland: broadleaved (5) Scrub (4) Woodland: coniferous (4) Coastland: grey dunes (3) Grassland: acidic, upland (3) Grassland: calcareous, semi-improved, upland (3) Mire: blanket bog (3) Neutral grassland: unimproved (3) Woodland and scrub (3) Boundaries: defunct hedge (2) Marsh/marshy grassland (2) Neutral grassland (2) Parkland and scattered trees: broadleaved (2) Parkland and scattered trees: mixed (2) Sand-dune: dune heath (2) Sand-dune: dune slack (2) Bog (1) Bog: raised (1) Boundaries: intact hedge (1) Built-up areas (1) Festuca ovina - Agrostis capillaris-Thymus praecox grassland (1) Grassland: acidic, semi-improved, upland (1) Montane heath/dwarf forb (1) Nardus stricta-Galium saxatile grassland (1) Wet heath/acid grassland (1) Woodland: mixed, plantation (1) Woodland: mixed, semi-natural (1)

Substrate (where recorded) & number of records: Soil Grassy (109) Soil (102) Soil Mossy (9) Soil Leaves (3) Grass (1) Leaf Litter (1) Mossy tree bole (1) Soil Needle (1) Soil sandy (1) Tree (1)

Months recorded in & number of records: January (4) March (1) August (3) September (34) October (184) November (185) December (4)