Phaeophyscia adiastola 
Phaeophyscia orbicularis 
Phyllobaeis imbricata 
Phyllosticta apocyni 
Physcia adscendens 
Physcia ascendens 
Physcia leptalea 
Physcia pumilior 
Physcia subtilis 
physica stellaris 
Pink earth lichen 
Placopsis gelida 
Plitt's Pore Lichen 
Podosphaera fuliginea 
Poison Fire Coral 
Polycephalomyces tomentosus 
Polysporina gyrocarpa 
Porpidia crustulata 
Porpidia macrocarpa 
Powdered Sunshine Lichen 
Privet Leaf Spot 
Protocrea pallida 
Pseudocyphellaria crocata 
Pseudocyphellaria rufovirescens