— 49 —' 
Cetraria lacunosa Ach. Very common, growing with C. cilians. 
“ glauca (L. ) Ach. On trees, abundant. 
“ oakesiana Tuckerm. Found on dead trees and occasionally 
on rocks. 
Cetraria aurescens Tuckerm. On evergreens, usually dead or dying. 
Evernia furfuraceae (L.) Mann. Found on dead arbor vitae. 
“ prunastri (L. ) Ach. On dead trees, very abundant. 
UsNEA BARBATA (L.) Fr. 
“ “ var. Florida Fr. 
“ “ “ HIRTA Fr. 
“ “ “ CERATINA Schser. 
“ “ “ DASYPOGA Fr. 
“ “ “ PLICATA Fr. 
“ “ “ RUBIGINEA Michx. 
“ ANGULATA Ach. 
“ TRICHODEA Ach. 
“ longissima Ach. Found on dead or dying evergreens, especially 
in swampy dense woods. 
Cetraria juniperina (L.) Agli. 
“ “ var. Pinastri Ach. Collected on dead wood. 
Alectoria jubata (L.) Tuckerm. 
“ “ var. chalybeiformis Ach. 
“ “ “ implexa Fr. Found on dead trees and fence rails. 
Theloschistes chrysophthalmus (L.) Norm. Collected on trees. 
“ parietinus (L.) Norm. Very common on trees. 
“ polycarpus (Ehrh.)Tuckerm. Common on trees and rocks. 
Theloschistes lychneus (Nyl.) Tuckerm. On living deciduous trees. 
“ concolor (Dicks.) Tuckerm. 
“ “ var. effuse Tuckerm. Collected on trees. 
Parmelia perlata (L.) Ach. On granitic rocks, very abundant. 
“ perforata (Jacq.) Ach. Found on dead or dying conifers. 
“ tiliacea (Hoffm. ) Floerk. Very common on dead wood. 
“ Borreri Turn. 
“ “ var. rudecta Tuckerm. Collected on trees both 
dead and living. 
Parmelia saxatilis (L.) Fr. 
“ “ var. sulcata Nyl. 
“ “ “ panniformis (Ach.) Schser. 
“ “ “ omphalodes Fr. On dead wood and rocks. 
“ physodes (L.) Ach. Abundant on dead spruce and hemlocks. 
“ colpodes (Ach.) Nyl. On trees and dead wood. 
“ olivacea (L,) Ach. 
“ “ var. aspidota Ach. 
“ “ “ sorediata (Ach.) Nyl-. On trees and rocks. 
“ caperata (L.) Ach. Very common on living trees, dead wood, 
and rocks. 
