Thorn Cladonia 
Toy Soldiers 
Transcend cup lichen 
Trapeliopsis flexuosa 
Tree lungwort 
Trumpet Lichen 
Tube Lichen 
Tuckermannopsis americana 
Tuckermannopsis fendleri 
Turban Lichen 
Twin Map Lichen 
Umbilicaria phaea 
Usnea cornuta 
Usnea hirta 
Usnea merrillii 
Usnea scabrida 
Varicellaria velata 
Vulpicida canadensis 
Wand Lichen 
Western Antler Lichen 
Western Pixie-Cup 
Wolf Lichen 
Wolf Lichen 
Xanthoparmelia brattii