312 A. Zahlbruckner: Flechten. [30 



Usnea subgracilis Wain. in Annal. Acad. Sc. Fennic, ser. A, vol. VI, no. 7, 1915, 



p. 7. — Insulae Antillanae. 

 U. trichodea var. Boergesenn Wain. in Annal. Acad. Sc. Fennic, ser. A, vol. VI, 



no. 7, 1915, p. 8. — Insulae Antillanae. 

 U. (Letitaria) dominicana Wain. in Annal. Acad. Sc. Fennic, ser. A, vol. VI, 



no. 7, 1915, p. 9. — Insulae Antillanae. 

 Variolaria arborea var. albula Sav. in Bull. Jard. Imp. Bot. Pierre le Grand, 



vol. XIV, 1914, p. 48. — Rossia, corticola. 

 V errucaria sordlda Fink in Proceed. Indiana Acad. Sc, 1918, p. 273. — America 



borealis, calcicola. 

 F. Marcü B. de Lesd. in Bull. Soc Bot. France, vol. LXVIII, 1921, p. 495. — 



Gallia, ad saxa silicea. 

 V. (Verrucarina) porinopsis f. isidiata Hue in Bull. Soc. Bot. Fi-ance, vol. LXIV, 



1917, p. 63. — Japonia. 

 V. (Verrucarina) porinopsis f. typica Hue, 1. s. c. — Japonia. 



