LICHENS 119 



142. Peltigera canina membranacea (Ach.) Nyl. 



Peltidea canina viembranacea Acharius, L. U. 518. 18 10. 

 Peltigera canina membranacea Nylander, Syn. 324. i860. 



Alaska (Evans, 184) ; head of Russell Fiord (Trelease, 959) ; 

 Sitka (Trelease, 1042; Setchell, 1272); Hot Springs, Baranof 

 Island (Trelease, 1039a) ; Vancouver Island, Broughton Strait 

 (Trelease, 1033, 1058, 1084) ; Point Gustavus, Glacier Bay (Coville 

 and Kearney, 778) ; Farragut Bay (Coville and Kearney, 474a) ; Un- 

 alaska (Trelease, 1043) ; St. Paul Island (Trelease, 1044) ; St. 

 Michael (Setchell) ; Pastoliak River (Newhall). 



The specimens from Sitka are especially large and v^^ell developed. 

 Most of the specimens are fertile. This is a common form on the 

 northwest coast of America. 



143. Peltigera canina spuria (Ach.) Nyl. 



Peltidea canina spuria AcHARius, L. U. 518. 18 10. — Sowerby, Eng. Bot. 



/. 1542- 

 Peltigera spuria ^\\.Kyi.v>lL-9i, Syn. 325. i860. 



Lowe Inlet, B. C. (Trelease, 1059a) ; Yakutat (Trelease, 10653). 

 Collected on St. Paul Island by Macoun. 

 Both specimens well developed and fertile. 



144. Peltigera rufescens (Neck.) Hoffm. 



Lichen rufescens Necker, Meth. Muse. 79. 1771. 



Peltigera rufescens Hoffmann, F1. Germ. 2 : 107. 1795. — Sowerby, Eng. 



Bot. /. 2J00. 



Wrangell (Trelease, iioi3, 11 27) ; Juneau (Setchell, 1246) ; Muir 

 Glacier (Trelease, 1102a, 1102^); Cape Fox (Trelease, 1070a); 

 St. Michael (Setchell). New to Alaska. Nylander reports it from 

 Konyam Bay on the Asiatic side of Bering Strait. 



145. Peltigera pulverulenta (Tayl.) Nyl. 



Peltidea pulverulenta Taylor in Hook. Lond. Joum. Bot. 6 ; 184. 1847. 

 Peltigera pulverulenta '^w.K^Ti'EVi, Syn. 325. i860. 



Alaska (Evans, no number) ; Disenchantment Bay (Trelease, 

 lo^^b) ; Port Wells (Trelease, 1056, 1056^) ; Hall Island (Trelease, 

 1067) ; Cape Nome (Setchell). New record for Alaska. 



Tuckerman, in his Syn. N. A. L., 108, records it as being in Herb. 

 Babington, from Kotzebue Sound. In Babington's list of the Flora 

 of Western Eskimaux Land no mention is made of this species, al- 

 though four other species of Peltigera are recorded from Kotzebue 

 Sound. The specimens vary greatly in the amount of granulation of 

 the thallus, no. 1056 being the most typical in that respect. 



