Galerina

atkinsoniana
autumnalis
bresadoliana
calyptrata
carbonicola
caulocystidiata
decipiens
hygrophila
laevis
marginata
paludosa
pumila
rubiginosa
sahleri
stylifera
velutipes
vittaeformis

Galeropsis

polytrichoides

Ganoderma

applanatum
lipsiense
lipsiensis
lucidum
neo-japonicum
oregonense
resiniceum

Gautieria

pterosperma

Geastrum

campestre
fimbriatum
fornicatum
minimum
quadrifidum
saccatum
sessile
striatum
triplex
velutinum

Geoglossum

fallax
glutinosum
umbratile

Geopora

arenicola
arenosa
foliacea
summneriana
sumneriana
tenuis

Geopyxis

carbonaria

Gerhardtia

incarnatobrunnea

Gerronema

daamsii

Gloeomucro

chlorinus?

Gloeophyllum

sepiarium

Gloiocephala

epiphylla

Gomphidius

glutinosus
gracilis
maculatus
oregonensis
roseus
subroseus

Gomphus

bonarii
clavatus
floccosus
fujisanensis
kauffmanii
pallidus
purpuraceus

Grifola

frondosa

Guepinia

(Phlogiotis) helvelloides

Gymnopilus

aeruginosus
igniculus
junonius
penetrans
sapineus
spectabilis
subtropicus
ventricosus

Gymnopus

biformis
confluens
dichrous
dryophilus
dysodes
earleae
fusipes
iocephalus
kauffmanii
luxurians
macropus
peronata
peronatus
polyphyllus
putillus
semihirtipes
spongiosus
striatipes
subnudus
villosipes

Gymnosporangium

sabinae

Gyrodon

exiguua
lividus
monticola

Gyromitra

accumbens
californica
esculenta
gigas
infula

Gyroporus

castaneus