204 MINNESOTA BOTANICAL STUDIES. 



76. Pannaria languinosa (Ach.) Kbr. 



On mossy shaded rocks or trees' bases, frequent. Beaudette, 

 June 18, 1901, no. 3 and June 20, 1901, no. 82. Warroad, 

 June 26, 1901, no. 192. Flag island, July 12, 1901, no. 542. 

 Emo, July 17, 1901, no. 638. Koochiching, July 25, 1901, no. 

 881. Rainy Lake City, August 3, 1901, no. 1169. Kettle 

 falls, August 9, 1901, no. 1334. Harding, August 20, 1901, 

 no. 1641. 



77. Pannaria rubiginosa (Thunb.) Delis. 



On cedars in swamps, rare. Oak island, July 8, 1901, no. 

 405. Emo, July 17, 1901, no. 654. Kettle falls, August 13, 

 1901, no. 1422. 



Not previously reported from Minnesota. 



78. Pannaria rubiginosa (Thunb.) Delis, var. conoplea Fr. 

 With the last and more frequent. Beaudette, June 24, 1901, 



no. 127. Emo, July 17, 1901, no. 637. Harding, August 17, 

 1901, no. 1565 and August 19, 1901, no. 1579. Tower, August 

 26, 1901, no. 1779. 



Not previously reported from Minnesota and new to the upper 

 Mississippi valley. This and the last above are very close to 

 the plant called P. lepidiota Th. Fr. in the last report, and 

 further study may result in bringing the two together. Also the 

 two forms of P. rubiginosa (Thunb.) Delis seem to run to the 

 next below, and that in turn is connected by intermediate forms 

 with P. microphylla (Sw.) Delis, second below. Thus the three 

 species as exhibited in Minnesota form a connected series. 



79. Pannaria leucosticta Tuck. 



On cedars in swamps, frequent, and more rarely on moss. 

 Beaudette, June 24, 1901, no. 126. Warroad, July 5, 1901, 

 no. 386. Blueberry island, July 13, 1901, no. 598. Emo, July 

 17, 1901, no. 656 and July 20, 1901, no. 781. Koochiching, 

 July 29, 1901, no. 1003 and July 31, 1901, no. 1022. Rainy 

 Lake City, August 5, 1901, no. 1207 and August 8, 1901, no. 

 1286. Kettle falls, August 13, 1901, no. 1355 and August 14, 

 1901, no. 1473. Harding, August 20, 1901, no. 1635. Tower, 

 August 24, 1901, no. 1740 and August 27, 1901, no. 1837. 



Not previously reported from Minnesota. 



80. Pannaria microphylla (Sw.) Delis. 



On rocks, locally common. Oak island, July 15, 1901, no. 

 618. Rainy Lake City, August 1, 1901, no. 1073 and August 

 3, 1901, no. 1170. 



