ADDITIONS TO THE FLORA OF WASHINGTON. 125 



Lecidea enteroleuca. var. theioplaca, Tuck. 



" arenaria, Fl. 

 " insularis, Nyl. 

 " albo-ccerulescens, Fr. 

 Buellia lactea, Mass. 

 " lepidastra, Tuck. 



atro-alba, Fl. 

 " parasema, Krb. 



" " var. caesio-pruinosa, Nyl. 



" " " triphragmia, Nyl. 



" " " microcarpa, Nyl. 



" dialyta, Nyl. 

 " myriocarpa, Dl. 

 " Schaereri, Dnot. 



" Elizae, Tuck. 

 " petraea, Tuck. 

 " " var. Montagnei, Fl. 



" " " Oederi, Krb. ; and others undefined. 



Trib. III. Graphidaoei. 



Fam. 1. LECANACTIDEA. 



Lecanactis chloroconia, Tuck. 



Fam. 2. OPEGKAPHEI. 



Opegrapha demissa. Tuck. 



" varia, Fr. 



" " var. notha, Fr. 



" " " pulicaris, Fr. 



" " " diaphora, Fr. 



" rimalis, Fr. 

 " atra, Nyl. 



" vulgata, Nyl. 



Xylographa opegraphella, Nyl. 



Graphis scripta, Ach. 



" " var. limitata, Schser. 



" " " recta, Schaer. 



" " " serpentina, Ach. 



" " " sophistica, Nyl. 



" " " assimilis, Nyl. 



" dentritica, Ach. 



