Agaricus campestris var campestris L.
(Field Mushroom)

Taxonomic hierarchy:
VarietyAgaricus campestris var campestris (Field Mushroom)
SpeciesAgaricus campestris (Field Mushroom)
GenusAgaricus (true mushrooms)
FamilyAGARICACEAE (mushrooms, dapperlings and parasols, puffballs and bird’s-nests)
OrderAGARICALES (mushrooms and toadstools)
SubclassAGARICOMYCETIDAE (a subclass of basidiomycetes)
ClassAGARICOMYCETES (a class of fungi)
SubphylumAGARICOMYCOTINA (a subphylum of fungi)
PhylumBASIDIOMYCOTA (spore droppers, basidiomycetes)
KingdomFUNGI (true fungi)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Agaricus campestris var campestris (Field Mushroom) :
1: Agaricus campestris var campestris (Field Mushroom)
25 Oct 2005 OSGR: SU46 51° 20’ N, 1° 20’ W Vice County: Berks (VC 22) England
Three mushrooms, in short species-rich grass . Photos: mushrooms, in situ, close-ups, LS
Image 1: Fruitbodies - arrangedImage 2: Fruitbodies growing in pastureImage 3: Fruitbody - in situ - close-upImage 4: Fruitbody - lain down to show gills and ring - close-upImage 5: Fruitbody - LS - close-up
2: Agaricus campestris var campestris (Field Mushroom)
17 Oct 2005 OSGR: SU56 51° 20’ N, 1° 20’ W Vice County: Berks (VC 22) England
4 fruitbodies (2 buttons) in grass near small Hawthorn bush . Photos: mushrooms: in situ, lain down, close-ups, LS, gill margin cells, spores
Image 1: ArrangementImage 2: Button - lain down - side view - close-upImage 3: Button - LS - close-upImage 4: Fruitbody - in situ - side viewImage 5: Fruitbody - in situ - side view (2)Image 6: Fruitbody - in situ - top viewImage 7: Fruitbody - in situ - top view (2)Image 8: Fruitbody - lain down to show gills and stipe - side viewImage 9: Fruitbody - lain down to show gills - side viewImage 10: Fruitbody - lain down to show stipe - side viewImage 11: Fruitbody - LS - close-upImage 12: Gils and cap margin - close-up - enlargedImage 13: Cells on gill edge - magnifiedImage 14: Cells on gill edge - magnified (2)Image 15: Spores - magnifiedImage 16: Spores - magnified (2)Image 17: Spores - highly magnified
3: Agaricus campestris var campestris (Field Mushroom)
11 Oct 1998 OSGR: SU46 51° 20’ N, 1° 20’ W Vice County: Berks (VC 22) England
Image 1: CapImage 2: Cap - LSImage 3: Cap - LS showing gillImage 4: Cap surface - centre - close-upImage 5: Cap surface - towards margin - close-upImage 6: FruitbodyImage 7: Fruitbody - LSImage 8: GillsImage 9: Gills - close-upImage 10: Spores

Agaricus campestris var campestris (Field Mushroom) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Agaricus campestris var campestris (Field Mushroom)
BioInfoBioInfo (www.bioinfo.org.uk) has 0 host/parasite/foodplant and/or other relationships for Agaricus campestris var campestris (Field Mushroom)

The Field Mushroom is the mushroom traditionally collected from pasture in the late summer. It is now much rarer due to the loss of unimproved pasture but where it does still occur it is often abundant. It can be recognised by the bright pink young gills, even in the ’button’ stage, the absence of a pale gill edge (no marginal cystidia) and the small thin ring which almost disappears.

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