136 CUMMINGS 



187. Theloschistes lychneus (Nyl.) Tuck. 



Physcia parietina lychnea NYLANDER, Syn. 411. 1860. 



Theloschistes lychneus TUCKERMAN, Syn. N. A. L. x : 50. 1882. HEPP, 

 Sporen. /. pp./. 871. 



Sitka (Trelease, 1169) ; Kadiak (Trelease, 1170 in part) ; Unalaska 

 (Trelease, 1154) ; St. Paul Island (Trelease, 930). Collected on St. 

 Paul Island by William Palmer, and reported by Nylander, under the 

 synonym Physcia lychnea (Ach.) Nyl., as occurring on St. Lawrence 

 Island. 



All sterile, on rocks or old rails. The specimen from Kadiak was 

 on rails with JBuellia myriocarpa chloropolia. 



1 88. Theloschistes lychneus pygmaeus (Fr.) Tuck. 



Parmelia parietina 1. pygmaa FRIES, L. E. 73. 



Theloschistes lychneus pygmceus TUCKERMAN, Syn. N. A. L. i : 51. 1882. 



Muir Glacier (Trelease, 1167); Sturgeon River Bay, Kadiak 

 Island (Trelease, 1171) ; Unalaska (Setchell) ; St. Paul Island (Tre- 

 lease, 886, 1173); St. Matthew Island (Trelease, 1172); St. Mich- 

 ael (Setchell) . This species has been collected on St. Paul Island by 

 J. M. Macoun, who states that it is * rare.' Also collected on St. 

 Paul Island by William Palmer, and in Alaska, no locality given, by 

 Dr. Kellogg, and on the islands in Bering Strait by Wright. 



Nos. 1172 and 1173 are sparingly fruited. No. 1173 was found 

 growing with fragments of Physcia on tufts of moss. 



189. Theloschistes polycarpus (Ehrh.) Tuck. 



Lichen poly carpus EHRHART, Plant. Crypt. 136. 1785. 



Theloschistes polycarpus TUCKERMAN, Syn. N. A. L. i : 50. 1882. SOWERBY, 

 Eng. Bot. /. 7/pj. 



Muir Glacier (Trelease, 1168) on Salix; Kukak Bay, Alaska 

 Peninsula (Coville and Kearney, 1515^); St. Paul Island (Trelease, 

 1 174) . Mixed with the specimen from Kukak is a fragment of Phys- 

 cia sp. All are fertile. A specimen collected by Professor Setchell 

 at St. Michael may possibly be placed here. Rothrock, in his list 

 based upon Dr. Bean's collection, places this as a variety under T. 

 parietinus, and writes: "Widely diffused over the Arctic regions 

 and apparently very common, being obtained at a number of points." 

 In his correction of Rothrock's list, Nylander refers the specimen to 

 Physcia lychnea, a synonym for T. lychneus. 



One additional species of this genus has been collected in Alaska 

 T. parietinus (L.) Norm., collected by Dr. Bean at Port Clarence, 

 and reported by Babington under the synonym Parmelia parietina 

 Ach M as occurring at Kotzebue Sound. 



