LICHKNOLOGY OF ICELAND 121 



C. nigrescens L. (D. B., p. 200, Synechoblastus). 



Not found in Greenland. G. Brit. 



C. pulposum Bernh. (D. B., p. 206). 

 Greenland. G. Brit. 



C. verrucaeforme L. (D. B., p. 206). 

 Not found in Greenland. 



Leptogium. 



L. lacerum Sw. (with v. pulvinatum Ach.) (D. B., p. 206). 

 Greenland. G. Brit. 



L. (Collemodium) plicatile Ach. 



On basalt, SeyiMsfjord, (). Galloe, 1913. New to Iceland. 



L. scotinum Ach. (D. B., p. 206). 

 Greenland. G. Brit. 



PANNARIACE.E. 

 (Massalongia, Placynthium, Pannaria, Psoroma). 



Massalongia. 



M. carnosa (Dicks.) Koerb. 



Almannagja near Thingvellir, SW. Iceland, O. Gall0e, 1913. New to 

 Iceland. 



Placynthium. 



P. delicatulum Th. Fr. (D. B., p. 207, Lecotheciuni). 

 Not found in Greenland. G. Brit. 



P. nigrum Huds. (D. B., p. 207, Lecothecium). 

 G. Brit. 



Pannaria. 



P. brunnea Nyl. (D. B., p. 207). 

 Greenland. G. Brit. 



P. elaeina Wahlenbg. (D. B., p. 207). 

 Not found in Greenland. 



P. granatina Sommerf. (D. B., p. 207). 

 Greenland. 



P. Hookeri Sm. (D. B., p. 207). 

 Greenland. G. Brit. 



P. lepidiota Sommerf. (D. B., p. 207). 

 Greenland. G. Brit. 



P. microphylla Nyl. 



On earth near the summit of the mountain of "Sulur" (Ofjord in 

 N.Iceland), O. Galloe, 1913, and on the mountains in the same place, 

 east of the fjord, idem, 1913. New to Iceland. 



P. triptophylla Ach. (D. B., p. 207). 



Greenland. G. Brit. 



