96 CUMMINGS 



Island; C. fur cat a (Huds.), collected on St. Paul Island by William 

 Palmer, determined by W. W. Calkins; C. rangiformis Hoffm., 

 reported for Kotzebue Sound by Hooker and Arnott, under synonym 

 Cenomyce pungens Del.; C. crispata f. divulsa (Del.) Arn., re- 

 corded by Nylander for Port Clarence under the synonym C. crispata 

 f. cetrariceformis Del. ; C. subsquamosa Nyl. (Emend.), recorded 

 by Nylander as occurring at Port Clarence ; C. cenotea (Ach.) Schaer., 

 reported by Nylander as occurring at Port Clarence, and by Rothrock 

 as having been collected by Dr. Bean on an island in Cross Sound, 

 while forms were brought from Cook Inlet and Sitka which are doubt- 

 fully referred here; C. mitrula Tuck., collected at Juneau by Dr. 

 Cooley ; C. decorticata (Floerke) Spreng., collected by Macoun on 

 St. Paul Island ; C. acuminata (Ach.) Norrl., reported by Nylander 

 as having been collected at Port Clarence; C. gracilis (L.) Willd., 

 reported by Rothrock 1 for Sitka and Kotzebue Sound, figured by 

 Hooper 2 (pi. 1-2), and recorded for Kotzebue Sound by Hooker and 

 Arnott under the synonym Cenomyce ecmocyna Ach. ; C. gracilescens 

 (Floerk.) Wainio, reported by Nylander, under the synonym Cladina 

 lepidiota (Ach.) Nyl., as having been collected on St. Lawrence 

 Island; C. py x idata pocillum (Ach.) Flot., collected on the islands 

 of Bering Strait by Wright, reported from Port Clarence by Nylander, 

 who also separates a form as f . cervina which is included by Wainio 

 under the var. pocillum; C. Jimbriata (L.) Fr., collected by William 

 Palmer on St. Paul Island, determined by W. W. Calkins, also col- 

 lected at Loring by Dr. Cooley, by whom a doubtful form was col- 

 lected at Sheep Creek, near Juneau; C. Jimbriata radiata (Schreb.) 

 Coem., reported by Hooker and Arnott for Kotzebue Sound under the 

 name Cenomyce radiata Ach. ; C. foliacca alcicornis (Lightf.) 

 Schaer., collected by Macoun under damp, overhanging rocks on St. 

 Paul Island, and recorded as C. alcicornis; and C. cyanipes (Som- 

 merf.) Wainio, reported by Nylander as collected at Port Clarence. 



PILOPHORUS. 



KEY TO THE SPECIES. 



Podetia short, stout, apothecia elongated cereolus hallii. 



Podetia more elongated, apothecia rounded cereolus acicularis. 



76. Pilophorus cereolus hallii Tuck. 



Pilophorus cereolus hallii TUCKERMAN, Obs. Lich. 4: 177. 1877. 

 Orca, 1500 ft. (Trele-ase, 1305). New to Alaska. 



1 Rothrock, Dr. J. T. Flora of Alaska, Smithsonian Report, 1867. 



2 Hooper, Cruise of the Corwin, iSSi. 



