1898-1902. No. 21. | LICHENS. 



Sjf 

 Pyrenocarpi. 



Verrucaria PERS. 



^ ' 



Verrucaria aetliiobola WNBG. - NYL. Scand. p. 272. -- Greenl. - 



Over rocks. 



Verrucaria ceutltocarpa WNBG. - TH. FR. Arct. p. 269. - - Greenl., 

 Spitsb. -- On rocks. 



Verrucaria epigaea ACH. - Leight. Ang. p. 64. - - Greenl. - < >ver 

 earth. - - E. P. S. N. King Oscar Land, Goosefjord (45). 



Verrucaria extrema TH. FR. TH. FR. Spitsb. 50. Spitsb. 

 On stone. 



Verrucaria margacea WNBG. TH. FR. Arct. p. 269. - - Spitsb. 

 Icel. -- On stone. 



Verrucaria maura (VAHL) NYL. - TH. FR. Arct. p. 268. -- Greenl., 

 Spitsb., Icel. - - On stone. 



Verrucaria mucosa WNBG. - TH. FR. Arct. p. 269. -- Greenl., Icel. 

 - On rocks. 



Verrucaria nigrescens PERS. - TH. FR. Arct. p. 267. - - Icel. -- On 

 rocks. - - E. P. S. N. King Oscar Land, Goosefjord (42). 



Verrucaria phaeothelena TH. FR. - - TH. FR. Engl. Pol. Ex. p. 366. - 

 Am. On stone. 



Verrucaria rejecta TH. FR. - TH. FR. Spitsb. p. 50. - - Spitsb. - 

 On stone. 



Verrucaria rupestris SCHRAD. - TH. FR. Arct. p. 271. - - Greenl., 

 Spitsb., Icel. --On stone. 



Verrucaria striatula WNBG. - TH. FR. Arct. p. 267. - - Spitsb. - 

 On stone. 



Verrucaria umbrina ACH. - - LEIGHT. Ang. p. 52.- - Greenl. - On 

 stone. 



Polyblastia, MASS. 



Polyblastia bryophila LONNR. - - TH. FR. Poly. p. 18. -- Am., Spitsb. 

 -Over moss and earth. 



Polyblastia gelatinosa (Acn.) TH. FR. - TH. FR, Poly, p. 17. - 

 Spitsb. -- Over dead moss. 



Polyblastia gothica TH. FR. -- TH. FR. Poly. p. 25. Spitsb. Over 

 dead moss. 



Polyblastia helvetica TH. FR. TH. FR. Spitsb. p. 48. - - Spitsb. - 



Over moss. 



