adiposus
Adipose, fat

admirabilis
Admirable, marvelous

adnata
Adnate

adnatifolia
Adnate gills

adonis
Adonis, a beautiful youth (a prince of Cyprus)

adspersum
Scattered

adulterina
Not genuine

adusta, adustum, adustus
Scorched (staining reddish, then smoky brown)

aegerita
Black poplar of Europe

aeneum
Bronze-colored

aereus
Bronze-colored, copper

aeruginascens
Becoming green or greenish-blue

aeruginea, aerugineus
Verdigris (dull greenish)

aeruginosa, aeruginosum
Blue green or deep green

aeruginosus
Blue green or deep green

aerumbonatus
Without umbo

aestivalis
Pertaining to summer

aestivum, aestivus
Of summer

aestuans
Burning or glowing

aethiops
Black

aetites
Dark grey-brown

affine, affinis
Related

affinis var viridilactis
Related; greenish milk

affinis var. maculosus
Related; spotted

agardhii
Carl Adolph Agardh, (1785-1859), Swedish botanist

agaricoides
Looking like a gilled mushroom

Agaricus
Of the country, Greek name for fungi

agathosmus
Pleasant smelling (almond extract)

agglutinata, agglutinatus
Adhere or unite with glue

aggregatum, aggregatus
Clustered, caespitose

agraria
Pertaining to field

Agrocybe
Fieldhead or fieldcap, common in cultivated regions

aianthina
Without violet tints

alabamensis
Alabama state

alachuanus
Alachua County, Florida

alaskanum
Alaskan

alba, albatum
White

Albatrellus
From the names of Italian fungi, albarello and arbatrello

albella, albellum, albellus
Whitish

albicastaneus
White chestnut color