1898-1902. No. 21.] LICHENS. 49 



Arthopyrenia MASS. 



Arthopyrenia analepta (Acn.) TH. FR. TH. FR. Arct. p. 272. - 

 Greenl., Icel. On bark. 



Arthopyrenia grisea (SCHLEICH.) TH. FR. TH. FR. Arct. p. 272. - 

 Greenl., Icel. On bark. 



Arthopyrenia kentrospora BRANTH. BR. Groenl. p. 511. Greenl., 

 Icel. On bark. 



Leptorhaphis KRB. 



Leptorhaphis epidermidis (Acn.) TH. FR. TH. FR. Arct. p. 273. - 

 Greenl. On bark. 



Segestria FR. 



Segestria mammillosa TH. FR. TH. FR. Arct. p. 262. Greenl. 

 On stone. 



Normandina NYL. 



Normandina viridis (Acn.) NYL. -- TH. FR. Arct. p. 256. Greenl. 

 - Over earth. 



Dermatocarpon ESCHW. 



Dermatocarpon botidarium NYL. BR. Groenl. p. 509. Greenl. 

 On stone. 



Dermatocarpon cinereum (PERS.) TH. FR. TH. FR. Arct. p. 256.- 

 Greenl., Spitsb., Icel. Over earth. 



Dermatocarpon daedaleum KRPHLHR. - - TH. FR. Arct. p. 255. - 

 Greenl. Over moss. 



Dermatocarpon hepaticum ACH. TH. FR. Arct. p. 255. Greenl., 

 Icel. Over earth and moss. 



Dermatocarpon miniatum (L.) SCHAER. - - TH. FR. Arct. p. 253. - 

 Am., Greenl., Icel., Over rocks. 



Dermatocarpon rufescens ACH. - TH. FR. Arct. p. 254. Greenl., 

 Icel. Over moss between rocks. 



Endocarpon HEDW. 



Endocarpon pulvinatum TH. FR. TH. FR. Arct. p. 257. -- Greenl., 

 Spitsb. On rocks. 



