Orange Gilled Waxcap 
Orange mycena 
Orange oyster 
Orange Pinwheel 
Orange pore fungus 
Orange Waxcap 
Orange webcap 
oudemansiella canari 
Oudemansiella gigaspora 
Oyster mushroom 
Pale Brittlestem 
Panaeolina foenisecii 
Panellus luxfilamentus 
Panellus pusillus 
Papillate Waxcap 
Parasol 
Parrot Mushroom 
Peach-Colored Fly Agaric 
Pear-shaped Puffball 
Pear-shaped Puffball 
Peck's Yellow Dust Amanita 
Peeling puffball 
Pelargonium webcap 
Petticoat Mottlegill