166 . MIDDLESEX FLORA. 



Eamalina, Ach., De Not. 



R. calicaris, (L) Fr., var. fastigiata, Fr. 



Waltham, Natick. 

 R. calicaris, (L.) Fr , var. farinacea, Schaer. 



Waltham. 

 R. pollinaria, (Ach.) 



Natick. 

 R. polymorpha, (Ach.) 



Chelmsford, Waltham. 



Cetraria (Ach.) Fr., Muell. 



C. Islandica, (L.) Ach. 



Cambridge, Watertowu, Newton, Natick. 

 C. aleurites, (Ach.) Th. Fr. 



Natick. 

 C. aleurites, (Ach.) Th. Fr., var. placorodia. Tuck. 



Waltham, Chelmsford. 

 C. ciliaris, (Ach.) 



Cambridge, Waltham, Natick, Sherboru. 

 C. lacunosa, Ach. 



Cambridge, Waltham, Natick, Sherborn. 

 C. juniperina, (L.) Ach. 



Cambridge, Natick. 



EvERNiA, Ach., Mann. 



E. furfuracea, (L.) Mann, 



Chelmsford, Waltham. 

 E. prunastri, (L.) Ach. 



Cambridge, Watertown, Natick. 



USNEA, (Dill.) Ach. 



U. barbata, (L.) Fr., var. florida, Fr. 



Waltham, Natick, Sherborn. 

 U. barbata, (L.) Fr., var. Inirta, Fr. 



Waltham, Natick. 

 U. barbata, (L.) Fr., var. dasypoga, Fr. 



Natick. 

 U. angulata, Ach. 



Chelmsford. 

 U. trichodea, Ach. 



Chelmsford. 

 U. longissima, Ach. 



Waltham. 



