atramentarius, Coprinus

atromarginatus, Pluteus

atrotomentosus, Paxillus

atroviridis, Lactarius

aurantiaca, Hygrophoropsis

aurantiorugosus, Pluteus

aurivella, Pholiota

autumnalis, Galerina

badius, Polyporus

bakerensis, Hygrophorus

barsii, Lepiota

berkeleyi, Bondarzewia