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 botularium 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. 



Endocai'pon HEDW. 



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

 Spitsb. On rocks. 



