Phylum: Basidiomycota Class: Agaricomycetes
Order: Agaricales Family: Bolbitiaceae
Species: Bolbitius titubans var. titubans (Bull.) Fr.
Synonyms: Agaricus boltonii
Agaricus equestris
Agaricus titubans
Bolbitius boltonii
Bolbitius flavidus
Bolbitius fragilis
Bolbitius titubans
Bolbitius vitellinus
Bolbitius vitellinus var. fragilis
Bolbitius vitellinus var. titubans
Prunulus boltonii
Prunulus titubans
Common Name: Yellow Fieldcap

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Bolbitius titubans var. titubansPhotographer:  Mark Wright
Photographer: Mark Wright

Photographer:  Sven Dahlbom Photographer:  David Mitchel
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View this species in its UK context on the BMS Database
Associated Species (where recorded) & number of records:
Bos domestic (7)
Poaceae (3)
Fagus sylvatica (2)
Poa (2)
Lolium perenne (1)
Calluna vulgaris (1)
Habitat (where recorded) & number of records:
Neutral grassland: semi-improved (7)
Woodland: broadleaved, semi-natural (7)
Woodland: mixed (5)
Woodland: broadleaved, plantation (4)
Acid grassland: semi-improved (3)
Woodland: broadleaved (3)
Acid grassland (2)
Neutral grassland (2)
Neutral grassland: unimproved (2)
Parkland and scattered trees (2)
Woodland: mixed, plantation (2)
Boundaries: defunct hedge (1)
Boundaries: intact hedge (1)
Built up area, domestic (1)
Calcareous grassland: unimproved (1)
Cultivated/disturbed land (1)
Cynosurus cristatus-Centaurea nigra grassland (1)
Grassland: acidic, unimproved, lowland (1)
Grassland: calcareous, unimproved, upland (1)
Grassland: neutral, semi-improved, lowland (1)
Heathland: wet dwarf shrub heath, upland (1)
Heathland: wet heath/acid grassland mosaic, upland (1)
Other artificial habitats (1)
Parkland and scattered trees: broadleaved (1)
Parkland and scattered trees: mixed (1)
Poor semi-improved (1)
Wet heath/acid grassland (1)
Woodland (1)
Woodland and scrub (1)
Woodland: coniferous, plantation (1)
Woodland: mixed, semi-natural (1)
Substrate (where recorded) & number of records:
Soil Grassy (43)
Soil (17)
Dung (9)
Grass (3)
Quercus (1)
Soil Mossy (1)
Soil sandy (1)
Straw heap (1)
Months recorded in & number of records:
January (2)
March (5)
April (1)
May (4)
July (9)
August (10)
September (17)
October (40)
November (15)