Frost: SOME MINNESOTA LICHENS. 85 



GRAPHIDEI Nyl. 



31. Graphis scripta (Linn.) Ach. var. recta (Humb. ) Nyl. 



Pyren. 41. 1858. 

 On Betula, Osceola, Wis. {W. D. F., Sept., 1892). 



32. Graphis wlegans (Sm.) Ach. Syn. 85. 1814. 



On Acer saccharinum LiNN. Osceola, Wis. {W. D. F„ 

 Sept., 1892). 



33. Graphis siihstriatula Nyl. 



On Celastrus scandens Linn. Osceola, Wis. ( W. D. F., 

 Sept., 1892). 



34. Graphis dendritica Ach. L. U. 271. 1810. 



On Quercus macrocarpa MiCHX. Spicer, Kandiyohi 

 county {W. D. F., Aug., 1892). 



