224 MINNESOTA BOTANICAL STUDIES. 



214. Biatora uliginosa (SCHRAD.) FR. 



On earth and old wood, common. Beaudette, June 18, 

 1901, no. 31, June 21, 1901, no. 104 and June 22, 1901, no. 

 115. Warroad, July i, 1901, no. 296. Blueberry island, July 

 13, 1901, no. 604. Koochiching, July 30, 1901, no. 1024. 

 Rainy Lake City, August 2, 1901, no. 1105 and August 8, 

 1901, no. 1298. Kettle falls, August 9, 1901, no. 1338. 

 Harding, August 19, 1901, no. 1600. Tower, August 28, 

 1901, no. 1714. 



215. Biatora f uliginea ACH . 



On an old Polyforus in swamp, rare. Beaudette, June 18, 

 1901, no. 32. 



Not previously reported from Minnesota and new to the Mis- 

 sippi valley. 



J3. uliginosa (Schrad.) Fr., B. fuliginea Ach. and B. asser- 

 culosum Schrad. are very closely related if not synonyms. 

 The last two seem to have smaller spores than the first. Spores 

 of the plant here listed are 6-9 by 3-5 mic. 



216. Biatora flexuosa (FR.) TUCK. 



On old wood, rare. Harding, August 21, 1901, no. 1661. 



217. Biatora myriocarpoides (NYL.) TUCK. 



On old wood and rocks, frequent. Warroad, June 26, 1901, 

 no. 175. Koochiching, July 31, 1901, no. 1030. Rainy Lake 

 City, August 5, 1901, no. 1212. Harding, August 16, 1901, 

 no. 1502, and August 20, 1901, no. 1614. Tower, August 23, 

 1901, nos. 1673 and 1703, and August 27, 1901, no. 1827. 



218. Biatora varians (Acn.) TUCK. 



On trees, rare. Warroad, June 27, 1901, no. 206. Oak 

 island, July 10, 1901, no. 506. 



219. Biatora quernea (DICKS.) FR. 



On old wood in swamps, infrequent. Warroad, June 26, 

 1901, no. 249. Rainy Lake City, August 7, 1901, no. 



1255- 



Not previously reported from Minnesota and new to the 



Mississippi valley. 



220. Biatora flavidolivens TUCK. 



On cedars in swamps, rare. Warroad, July i, 1901, no. 289. 

 Apothecia becoming black. 



