aleuriatus, Bolbitius

alveolaris, Favolus

americana, Lepiota

americanus, Coprinus

amethystina, Laccaria

amianthinum var. rugosoreticulatum, Cystoderma

amianthinum, Cystoderma

amoenolens, Russula

andersonii, Inonotus

androsaceus, Marasmius

angustifolius, Lentinellus

annosum, Heterobasidion