Melanelixia subaurifera 
Melanoleuca arcuata 
Melanoleuca melaleuca 
Melogramma gyrosum 
Membranous Pelt Lichen 
Merismodes Anomala 
Methuselah's Beard Lichen 
Methuselahs beard lichen 
Mica Cap 
Microporus affinis 
Microporus xanthopus 
Milking bonnet 
Milky bonnet 
Miller 
Mitrula elegans 
Morchela populiphila 
Morchella brunnea 
Morchella conica 
Morchella elata 
Morchella esculenta 
Morchella frustrata 
Morchella importuna 
Morchella sceptriformis 
Morchella snyderi