24 OTTO V. DARBISHIRE. I SEC. ARCT. EXP. FRAM 



Psora demissa (RUTSTR.) TH. FR. TH. FR. Scand. p. 420. Greenl., 

 Spitsb., Icel. Over earth and old wood. 



Psora globifera (Acn.) KBR. TH. FR. Scand. p. 411. Greenl. - 

 Over earth. 



Psora lurida (Sw.) KBR. TH. FR. Scand. p. 413. Greenl., Icel. 

 Over earth. 



Psora rubiformis ( WAHL.) FR. - TH. FR. Scand. p. 412. Am., 

 Greenl., Spitsb., Icel. 



Umbilicaria, HFFM. 



Umbilicaria Pennsylvania (HFFM.) Hue Lich. Extra, n. 373. - 

 Am., Greenl. On stone. 



Gyrophora ACH. 



Gyrophora anthracina (WuLF.) KBR. TH. FR. Scand. p. 165. - 

 Am., Greenl., Spitsb. On stone. E. P. S. N. Ellesmere Land, Frams- 

 harbour (15), Bedford Pirn Island (19, 20), Brevort Island (22); North 

 Lincoln (23); King Oscar Land, Harbourfjord (27), Goosefjord (3840, 

 4850); Camp n. 30 (68). 



Gyroplwra arctica ACH. - - TH. FR: Scand. p. 161. Am., Greenl, 

 Spitsb., Icel. On stone. E. P. S. N. Ellesmere Land, Framsharbour(17). 



Gyrophora corrugata (Acn.) TH. FR. TH. FR. Scand. p. 161. - 

 Icel. On stone. 



Gyrophora cylindrica (L.) ACH. TH. FR. Scand. p. 157. Am., 

 Grenl., Spitsb., Icel. On stone. E. P. S. N. Ellesmere Land, Frams- 

 harbour (17); King Oscar Land, Harbourfjord (27), Goosefjord (38). 



Gyrophora deusta (L.) Fw. - TH. FR. Scand. p. 164. Greenl. - 

 On stone. 



Gyrophora discolor TH. FR. TH. FR. Spitsb. p. 31. Am., Greenl., 

 Spitsb. On stone. 



Gyrophora erosa (\VEB.) ACH.-- TH. FR. Scand. p. 159. Am., 

 Greenl., Spitsb., Icel. On stone. E. P. S. N. Ellesmere Land, Beitstads- 

 fjord (7), Framsharbour (17). 



Gyrophora hirsuta ACH. TH. FR. Scand. p. 155. Greenl , Icel. 

 - On stone. -- E. P. S. N. Greenland (2); Etlesmereland, Bedford Pirn 

 Island (20); King Oscar Land, Harbourfjord (24), Goosefjord (40, 49). 



Gyroplwra hyperborea (HFFM.) MUDD. - TH. FR. Scand. p. 160. 

 Am., Greenl., Spitsb.. Icel. On stone. E. P. S. N. Greenland (2); Elles- 

 mereland, Framsharbour (15, 17); King Oscar Land, Harbourfjord (27), 

 Goosefjord (38, 48). 



