SUPPLEMENT. 



This Supplement is intemied to give the names of published Li- 

 chens following Part I. of Tuckerman's Synopsis, so far as known to 

 me. There are of course many unpublished species. I have not 

 included inedited spp. of Tuckerman, but have ventured to name a 

 few Arthonias, having had the advantage of studying Tuckerman's 

 collection of the Genus. There are, however, several species on 

 which I have not cared to venture an opinion. The authors of the 

 species named are responsible for them. Most of the Arctic spp. 

 not in a previous list, are given on the authority of Nylander and 

 Theodore M. Fries. 



The distribution given is according to the Districts of the previous 

 pages, but is very general. G. stands for a more or less general 

 distribution ; Atl. for the Atlantic district ; Alp. for the Alpine ; 

 Arc. for the Arctic ; W. for the "Western ; Pac. for the Pacific ; 

 and S. for the Southern. 



Tribe 2. LECIDEACEI. 



Fam. 3. LECIDEEI. 



Subfam. 1. Bseomycei Fee. 



BvEOMYCES Fee. 

 roseus Pers. G. 

 luhgoides (Sw.) Ach. S. 

 byssoides (L.) Fr. G. 

 seruginosus (Scop.) Kyi. Alp. 

 absolutus Tuck. S. 

 placophyllus Fr. Alp. 



Subfam. 2. Biatorei Fr. 



BiATOEA Fr. 



A. Thallus squamulose. Psora. 



declpiens Fr. W. 

 crenata Tayl. W. 

 icterica Mont. W. ■ 

 Kussellii Tuck. G. 

 globlfera (Ach.) Fr. G. 

 luridella Tuck. Pac. 



