1898-1902. No. 21.] LICHENS. 37 



Cetraria hiascens (FR.) TH. FR. - - TH. FR. Scantl. p. 98. Am., Greenl., 

 Spitsb., Icel. Over earth. E. P. S. N. Ellesmereland, Cape Rutherford (14), 

 Framsharbour (17). Bedford Pirn Island (21); King Oscar Land, Harbour- 

 fjord (26, 27, 31, 33), Goosefjord (3840), Vendom Kap (55); North Kent 

 (64); North Devon (66); Cardigan Straits (67). 



Cetraria islandica (L.) ACH. - TH. FR. Scand. p. 98. - - Am., Greenl., 

 Spitsb., Icel. Over earth. - E. P. S. N. King Oscar Land, Harbourfjord 

 (33), Goosefjord (40, 50), Landsend (58). - The narrow form of this spe- 

 cies, crispa ACH., was met with in Greenland (1); King Oscar Land, 

 Harbourfjord (27), Goosefjord (38, 40). 



Cetraria juniperina (L.) ACH. - TH. FR. Scand. p. 104. Greenl - 

 < K r er branches, moss and rocks.-- E. P. S. N. King Oscar Land, Exkrement- 

 bugten (56). 



Cetraria nigricans NYL. TH. FR. Scand. p. 100. Greenl. Over 

 earth and rocks. 



Cetraria nivalis (L.) ACH. - TH. FR. Scand. p. 102. Am., Greenl., 

 Spitsb,, Icel. - - Over earth, and moss. - E. P. S. N. Greenland (1), Beit- 

 stadsfjord (7), Twinglacier Valley (S), Cape Viele (10), Cape Rutherford 

 (14), Bedford Pirn Island (20); North Lincoln (23); King Oscar Land, 

 Harbourfjord (24, 26, 32), South Cape (34), Goosefjord (44, 45, 51), Bra- 

 skerudslauen (63); North Devon (65); Cardigan Straits (67). 



Cetraria odontella ACH. - TH. FR. Scand. p. 99. - Am., Greenl. - 

 On stone. 



Cetraria pinastri (Scop.) ACH. - - TH. FR. Scand. p. 104. Am., Greenl. 



- Over wood and stone. 



Cetraria Richardsonii (HooK.) TUCK. -- NYL. Syn. I. p. 306. Am. 



- Over earth. 



Cetraria saepincola (EHRH.) ACH. - TH. FR. Scand. p. 106. Greenl., 

 Icel. Over branches. 



Dactylina NYL. 



Dactylina arctica (Hoox.) NYL. NYL. Syn. I. p. 286. -Am., Greenl., 

 Icel. Over earth. - - E. P. S. N. Greenland (3); Ellesmereland, Cape Viele 

 (10), Cape Rutherford (14), Bedford Pirn Island (19); King Oscar Land, 

 Harbourfjord (27, 33), Goosefjord (39). 



Dufourea ACH. 



Dufourea muricata LAUR. - TUCK. N. A. L. I. p. 30 (as Cetraria r- 

 mulosa HOOK.). Am., Spitsb. - Over earth - E. P. S. N. Ellesmereland, 

 Cape Viele (10), Framsharbour(15, 17); King Oscar Land, Harbourfjord 

 (26, 33), Goosefjord (3840), Renbugten (57): North Devon (65). 



