Sparassis crispa 
Spathulariopsis velutipes 
Speckled Blister Lichen 
Speckled Tar Spot 
Spectacular Rustgill 
Sphaeronaemella helvellae 
Spindletree Powdery Mildew 
Spiny Puffball 
Split-pore Crust 
Splitgill Mushroom 
Spongipellis unicolor 
Sporothrix epigloea 
Spotted cort 
Spotted Dog Lichen 
Spotted Toughshank 
Spreading Yellow Tooth 
Spring beauty rust 
Spring Hazelcup 
Spring orange peel fungus 
Spring Polypore 
Spring Polypore 
Spruce Feather 
Squamarina cartilaginea 
Squamarina gypsacea