Fink : LICHENS OF THE MINNESOTA VALLEY. 313 



43. Peltigera horizontalis (L.) HOFFM. 



On shaded earth, frequent locally. Redwood Falls, July 6, 

 1899, no. 301. 



44. Heppia despreauxii (MONT.) TUCK. 



On earth, rare at first locality and frequent at second. Man- 

 kato (Rapidan) June 28, 1899. no. 177. Granite Falls, July n, 

 1899, no. 394, July 13, 1899, no. 507 and July 14, 1899, no. 

 522. 



Not previously reported from Minnesota. 



45. Heppia polyspora TUCK. ? 



On earth, rare. Granite Falls, July 13, 1899, no. 498. 



< 8 

 Spores spherical or subspherical, d mic. This exceeds 



5 . 



Tuckerman's measurements. Apothecia occasionally surpass- 

 ing one mm. in diameter. I may later find it necessary to 

 separate this as new species. 



Not previously reported from Minnesota. 



46. Pannaria languinosa (Acn.) KOERB. 



On various rocks, earth and trees in shaded places, common 

 or abundant. Mankato, June 23, 1899, no. 50. New Ulm, 

 July 5, 1899, no. 280. Granite Falls, July n, 1899, no. 396, 

 and July 17, 1899, no. 569. 



47. Pannaria microphylla (Sw.) DELIS. 



On shaded granite, infrequent. Redwood Falls, July 8, 

 1899, no. 345. Granite Falls, July u, 1899, no. 384. 



48. Pannaria nigra (Huos.) NYL. 



On limestone, common locally. Mankato, June 24, 1899, 

 no. 95. 



49. Ephebe pubescens FR. 



On quartzite, rare. New Ulm, July 5, 1899, no. 257. 



50. Pyrenopsis phaeococca TUCK. 



On bowlders, rare. Mankato, June 23, 1899, no. 74. 

 Not previously reported from Minnesota and new to the 

 Mississippi valley. 



51. Pyrenopsis melambola TUCK.? 



On bowlders, frequent. Mankato, June 29, 1899, no. 189. 

 Spores somewhat small (7-10x4-5*^ mic.). 



Not previously reported from Minnesota and new to the 

 Mississippi valley. 



