358 GEOLOGICAL SURVEY OF NEW JERSEY. 
CETRARIA, Ach. 
C. Islandica (L.), Ach. 
Sussex, and Warren: Delaware Water Gap—Austin. 
C. aleurites (Ach.), Th. Fr. , 
; Eastern counties, on living trees and dead wood—Eckfeldt. 
Yy Var. placorodia, Tuck. 
Ocean :—Austin. Monmouth: On old rails, frequent—Eck- 
feldt. 
C. Fendleri, Tuck. 
Ocean :—Austin. New Jersey—E. Michener. Camden and 
Atlantic: On old rails, frequent—Eckfeldt. 
C. Fahlunensis (L.), Scher. 
Rocks. Warren: Delaware Water Gap—Austin. 
C. ciliaris (Ach.), Tuck. 
On trees and old rails throughout the State; fertile. 
se lacunosa, Ach. 
On trees and old rails; common; fertile. 
C. glauca (L.), Ach. 
Northern New Jersey ; mostly on trees—Eckfeldt. 
C. aurescens, Tuck. 
Bergen: On old rails—Austin. Passaic: Sterile—Eckfeldt, 
C. juniperina (L.), Ach. 
Pine barrens; very abundant. 
Var. Pinastri, Ach. 
Bergen: On trees—Austin. 
EVERNIA, Ach. 
E. furfuracea (L.), Mann. 
Bergen: On old trees—Austin. 
USNEA, Ach. 
U. barbata (L.), Fr. 
Common on old trees. 
