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554 shield lichens and allies species
Parmotrema praesorediosum
Parmotrema rigidum
Parmotrema rubifaciens
Parmotrema sulphuratum
Parmotrema zollingeri
Protoparmelia atriseda
Protoparmelia cupreobadia
Protoparmelia nephaea
Pseudevernia intensa
Pseudoparmelia sphaerospora
Punctelia hypoleucites
Punctelia punctilla
Punctelia subpraesignis
Sulcaria isidiifera
Usnea amabilis
Usnea angulata
Usnea baileyi
Usnea californica
Usnea capillaris
Usnea cirrosa
Usnea dimorpha
Usnea endochrysea
Usnea erinacea
Usnea esperantiana
Usnea evansii
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