I walked Basil up through the fields and back down again
and here is what I found along the way.
Verdigris Roundhead (Stropharia aeruginosa).
The gills have a white margin, whereas S. caerulea does not.
The spores contain a germ pore and S. caerulea does not.
Cheilocystidia mounted in ammonia - above and below.
Dung Roundhead (Stropharia semiglobata) above and below.
A washed out Fly Agaric (Amanita muscaria var. muscaria).
Honey Fungus (Armillarea mellia) above and two below.
Snowy Waxcap (Hygrocybe virginea)
Meadow Waxcap (Hygrocybe pratensis) above and two below.