702 MINNESOTA BOTANICAL STUDIES. 
152. Biatora glauco-nigrans Tuck. 
On trees in low woods, infrequent. Henning, June 29, 1900, 
no. 255. 
153. Biatora spheroides (Dicxs.) Tuck. 
On mossy bases, rare. Bemidji, July 12, 1900, no. 663. 
Not previously reported from Minnesota. 
154. Biatora hypnophila (TuryN.) Tuck. 
On mossy earth, rare. Henning, June 29, 1900, no. 346 
and June 30, 1900, no. 365. Bemidji, July 4, 1900, no. 452, 
July 5, 1900, no. 483, July 11, 1900, nos. 612 and 617 and July 
14, 1900, no. 731. Thief River Falls, July 17, 1900, no. 768 
and July 23, 1900, no. 871. Red lake, July 30, 1900, no. 998 
and July 31, 1900, no. 1008. 
155. Biatora rubella (EHRH.) RABENH. 
On elms, ashes, poplars, infrequent. Battle lake, June 20, 
1900, no. 72. Henning, June 25, 1900, nos. 171, 172 and 173. 
Bemidji, July 9, 1900, no. 554, July 11, 1900, no. 616, July 12, 
1900, no. 681 and July 13, 1900, nos. 706 and 712. Thief 
River Falls, July 18, 1900, no. 783 and July 21, 1900, no. 868. 
Red lake, July 26, 1900, no. 892. 
156. Biatora fusco-rubella (Horrm.) Tuck. 
On trees, infrequent. Henning, June 29, 1900, no. 345. Red 
lake, July 28, 1900, no, 936, July 31, 1900, no. 1015 and Aug. 
I, 1900, no. 1041. 
157. Biatora suffusa FR. 
On trees, rare. Red lake, July 27, 1900, no. 918. 
158. Biatora atrogrisea (DELIs.) Hepp. 
On trees, infrequent. Henning, June 30, 1900, no. 376. 
Bemidji, July 11, 1900, no. 596. Thief River Falls, July 21, 
1900, no. 858. 
Not previously reported from Minnesota. 
159. Biatora inundata Fr. 
On pines and rocks, rare. Battle lake, June 20, 1900, nos. 
65 and 103. Bemidji, July 10, 1900, no. 575. Red lake, 
July 30, 1900, nos. 981 and 984 and July 31, 1900, no. 1040. 
160. Biatora akompsa Tuck. 
On trees, common. Battle lake, June 18, 1900, no. 3. 
Not previously reported from Minnesota and new to the in- 
terior of North America. 
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