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Tribe I. PARMELIACEI, Fr. 
Fam. 1. Usneei, Fr. 
Roccetia leucophea,Tuckerm. San Diego, on Obione ; 
Dr. C. C. Parry. 
RamMAtina Menziesit, Tayl. Coast. Monterey ; Menzies. 
Sta. Barbara; Dr. Parry. Vancouver's Island; Dr. 
Lyall. 
R. leptocarpha, Tuck. Coast. Monterey; Menzies. 
Alcatraz; Mr. Wright. San Diego; Dr. J. G. Cooper. 
R. levigata, Fr. (Parm. Ecklon, Spreng.) New Mexi- 
co; Mr. Wright. 
R. tenuis, Fr. & Tuck. New Mexico; Mr. Wright. 
R. calicaris, Fr., v. fraxinea, Fr. New Mexico; Mr. 
Fendler. Var. farinacea,Scher. Coast; Mr. Wright. 
Rocky Mountains; Dr. Hayden. 
R. pollinaria, Ach. New Mexico; Mr. Fendler. 
R. homalea, Ach. Coast rocks, Calif.; Menzies. San 
Diego ; Dr. Cooper. 
R. ceruchis (Ach.) De Not. Coast, on trees. Alcatraz; 
Mr. Wright. San Angelo; Russell herb. San Diego; 
Dr. Cooper. 
DactyLina ramulosa (Hook.) Tuck. Rocky Mountains, 
Hook, Herb. 
