Goldenedge Bonnet 
Goldenhaired Inkcap 
Gomphidius smithii 
Gomphidius subroseus 
Gorgeous waxy cap 
Grass Oysterling 
Grass-green Russula 
Grassland Puffball 
Gray Bolete 
Green Skin-head 
Green-spored Parasol 
Green-staining coral 
Green-tipped coral 
Greenfoot Fibrecap 
Grey knight 
Grey tooth 
Grifola colensoi 
Grisette 
Grooved bonnet 
Guepinia 
Guepiniopsis alpina 
Gumtree Deceiver 
Gunpowder Amanita 
Gymnoconia nitens