124 OLAF GALLOE 
L. alphoplaca Wahlenbg. (D. B., p. 209, Squamaria). 
Greenland. G. Brit. 
L. alpina Sommerf. 
On Liparite, Hlidarfjall near Myvatn, N. Iceland; erratic blocks on 
the mountains east of Ofjord; on stones in Almannagjä, SW. Iceland. 
O. Galloe, 1913. New to Iceland. 
L. atra (Huds.) Ach. (D. B., p. 210). 
Greenland. G. Brit. 
L. atriseda Fr. (D. B., p. 210). 
Not found in Greenland. G. Brit. 
L. atrosulphurea (Wahlenbg.) Ach. (D. B., p. 210, L. variæ forma). 
L. badia (Pers.) Th. Fr. (D. B., p. 210). 
Greenland. G. Brit. 
L. calcarea (L.) Sommerf. 
On basalt, Reydarfjord in E. Iceland, O. Galløe, 1913. New to Iceland. 
L. cartilaginea Westr. (D. B., p. 208, Squamaria). 
Not found in Greenland. G. Brit. 
L. castanea (Hepp.) Th. Fr. (D. B., p. 210). 
Not found in Greenland. 
L. chrysoleuca Sm. (D.B., p. 209, Squamaria) f. rubina Vill. and 
melanophthaima Nyl. 
Greenland. G. Brit. 
L. cinerea (L.) Sommerf. (D. B., p. 210). 
Greenland. G. Brit. 
L. cinereo-rufescens Dicks. (D. B., p. 211). 
Greenland. G. Brit. 
L. coarctata v. ornata Sommerf. (D. B., p. 210). 
G: Brit. 
L. frustulosa (Dicks.) Koerb. (D. B., p. 209). 
Greenland. G. Brit. 
L. gelida (L.) Ach. (D. B., p. 208, Squamaria). 
Greenland. G. Brit. 
L. gibbosa (Ach.) Nyl. (D. B., p. 210). 
Greenland. G. Brit. 
L. Hageni (Ach.) Koerb. (D. B., p. 209). 
Greenland. G. Brit. 
L. lacustris Wither. (D. B., p. 211). 
Greenland. G. Brit. 
L. pallescens (L.) Schær. (D. B., p.211) with var. parella L. and 
Upsaliensis L. 
Greenland. G. Brit. 
L. poliophæa Wahlenbg. (D. B., p. 209). 
G. Brit. 
L. polytropa Ehrh. (D. B., p.210, L. variæ forma). 
