Tatraea macrospora 
Thorn Cladonia 
Tolypocladium longisegmentum 
Torrendiella eucalypti 
Toy Soldiers 
Transcend cup lichen 
Trapeliopsis flexuosa 
Tree lungwort 
Trichaleurina javanica 
Trichoderma harzianum 
Trichoderma strictipile 
Trichoderma viride 
Trumpet Lichen 
Tube Lichen 
Tuckermannopsis americana 
Tuckermannopsis fendleri 
Turban Lichen 
Turquoise Elfcup 
Twin Map Lichen 
Umbilicaria phaea 
Usnea cornuta 
Usnea hirta 
Usnea merrillii 
Usnea scabrida