ADDITIONS TO THE FLORA OF WASHINGTON. 119 



Usnea barbata, Fr. 



var. florida, Fr. 

 " " hirta, Fr. 



" rubiginia, Michx. 

 " dasypoga, Fr. 

 " ceratina, Schaer. 

 " angulata, Ach. 

 trichodea, Ach. 

 Alectoria jubata, L. 

 Fain. 2. PAKMELIEI. 



Theloschistes chrysophthalmus, Norm. 



var. flavicans, Wallr. 

 parietinus, Norm, 

 polycarpus, Ehrh. 

 lychneus, Nyl. 

 concolor, Dick. 



var. effuse, Tuck. 

 Parmelia perforata, Ach. 



var. hypotropa, Nyl. 

 crinita, Ach. 

 " saxatilis, Fr. 



" physodes, Ach. 



/ 

 Borreri, Turn. 



" var. rudecta, Tuck, 

 laevigata, Nyl. 

 tiliacea, Floerke. 



var. sublaevigata, Nyl. 

 " sulphurosa, Tuck, 

 cetrata, Ach. 

 colpodes, Nyl. 

 olivacea, Ach. 

 caperata, Ach. 

 conspersa, Ach. 

 ambigua, Ach. 

 Physcia speciosa, Nyl. 

 " hypoleuca, Tuck. 



comosa, Nyl. 

 " granulifera, Tuck. 



