I2O CUMMINGS 



146. Peltigera polydactyla (Neck.) Hoffm. 



Lichen polydactylus NECKER, Meth. Muse. 132. 1771. 



Peltigera polydactyla HOFFMANN, Fl. Germ. 2 : 106. 1795. DILL. Hist. Muse. 

 /. 28, f. 107-108. 



Lowe Inlet, B. C. (Coville and Kearney, 343) ; Sitka (Trelease, 

 1041 ; Setchell, 1271) ; Hot Springs (Trelease, 1039) ; Farragut Bay 

 (Trelease, 1034; Coville and Kearney, 472) ; Orca (Trelease, 10360, 

 1037, 1060) ; Unalaska (Setchell). Collected by Dr. Cooley at Gold 

 Creek Canon, near Juneau. Rothrock records its occurrence at 

 4 Kotzebue Sound, Sitka, etc./ but does not give the names of the 

 collectors. 



Most of the specimens are sterile, and the determination is therefore 

 not without question. After careful comparison with the large series 

 of specimens in the Tuckerman Herbarium it seems best to refer these 

 specimens here. 



147. Peltigera horizontalis (L.) Hoffm. 



Lichen horizontalis LINNAEUS, Mant. 132. 1771. 



Peltigera horizontalis HOFFMANN, Fl. Germ, a : 107. 1795. SOWERBY, Eng. 

 Bot. /. 888. 



Aguadulce River, Yakutat Bay (Trelease, 1099) ; Yakutat (Tre- 

 lease, 1094) ; Egg Island, Disenchantment Bay (Coville and Kearney, 

 1010). 



All the specimens are sterile, and therefore there must remain some 

 question about their determination. 



148. Peltigera apthosa (L.) Hoffm. 



Lichen apthosus LINN^US, Fl. Suec. 1098. 1755. 



Peltigera apthosa HOFFMANN, Fl. Germ, a : 107. 1795. SOWERBY, Eng. Bot. 

 /. mo. 



Multnomah Falls, Oregon (Trelease, 1053) ; locality lost (Trelease, 

 1032) ; Alaska (Evans, 409) ; Fort Cosmos (Huff, 6) ; Lowe Inlet, B. 

 C. (Trelease, 1059, 1103) ; Wrangell (Trelease, noi) ; Hot Springs, 

 Baranof Island (Trelease, no number, also 1040) ; Juneau (Trelease, 

 1090) ; Hidden Glacier Inlet, Yakutat Bay (Trelease, 1062, 1093) ; 

 Kadiak (Trelease, 1076) ; Orca (Trelease, 1036, 10360) ; Port Wells 

 (Trelease, 10560) ; Virgin Bay (Trelease, 1035) ; Farragut Bay 

 (Brewer and Coe, 705) ; Egg Island, Disenchantment Bay (Coville and 

 Kearney, 1009) ; Shumagin Islands, Popof Island (Saunders, 1081) ; 

 Attu Island (Townsend, 74) ; Unalaska (Setchell) ; Pastoliak River 

 (Newhall) . Rothrock reports the species as having been collected at 

 Port Mulgrave, Yakutat Bay, by Dr. Bean, and also as having been 

 collected at 'Kotzebue Sound, Sitka, etc./ the collectors' names not 



