76 ADDENDA. 



PAGE 



4 9 . Verrucaria poli/stida . 



Adde syn. Verrucaria poly sticta^ Schjer. Enum. 216. 



50. Verrucaria concinna. 



Whilst these pages were printhig, I have examined an 

 authentic specimen of Verrucaria Dufourii^ D. C, 

 obtained by the Kev. Churchill Babington from M. 

 Montagne. It proves to be identical with our British 

 Verr. concinna^ and with specimens gathered by Mr. 

 Spruce in the Pyrenees. Consequently our V. concinna 

 must, in future, bear the name of Verr. Dufourii^ 

 D. C, and FerrMCna Z)?(/bMm, E. Bot. Suppl. t. 2791, 

 will be appropriately designated Verrucaria Borreri. 



The synonymy will stand thus : 



Verrucaria JDufourii, D. C. 



Verrucaria Dufourii, D. C, Fl. Fr. ed. 2, 2, 318. (1805.) 



Fries, L. Ref. 432. 



concinna^ Borr., E. Bot. Suppl. 2623, fig. 1. 



(1830.) 



Hook, Br. Fl. ii. 152. 



Leight., Brit. Ang. Lich. 50. 



epipolcea^ /3. concinna^ Schajr. Enum. 218. (1850.) 



Verrucaria Borreri, 



Verrucaria Dufourii, Borr., E. Bot Suppl. 2791. (1831.) 



Tayl., Fl. Hib. pt. il. 92. 



Schaer., Enum. 218. (in part.) 



Leight., Brit. Ang. Lich. 51. 



52. Verrucaria umhrina. 



Adde syn. Pyrenula umbrina^ SchaBr. Enum. 210. 



54. Verrucaria Sprucei, 



May 1, 1851. Mr. Borrer this day permitted me to examine 

 an authentic specimen of Verrucaria pyrenophora^ 

 AcH., received from Schleicher, who, according to 

 'Lich. Univ.' furnished Acharius with the species. 

 The sporidia proved it to be identical with V. Sprucei^ 

 Ch. Bab., which name must therefore give place to 

 V. pyrenophora^ Ach. 



The synonymy will stand thus : 



Verrucaria pyrenojphor ay Ach. 



Verrucaria pyrenophora^ Ach., L. Univ. 285. tab. 4, fig, 3. 



(1810.) Syn. 94. 

 Verrucaria Dufourii, Schaer. Enum. 218 (in part). (1850.) 



Sprucei, Leight., Brit. Ang. Lich. 54. tab, 23. 



(1851.) 



