Fink ; LICHENS OF NORTHWESTERN MINNESOTA. 687 
29. Parmelia conspersa (EHRH.) AcH. 
On granitic bowlders, rare. Bemidji, July 16, 1900, no. 745. 
Thief River Falls, July 10, 1900, no. 832a. 
30. Physcia speciosa (WuLF., Acu.) Nyt. 
On bowlders and trees, rare. Bemidji, July 11, 1900, nos. 
598 and 613. 
31. Physcia hypoleuca (Muunt.) Tuck. 
On trees, rare. Bemidji, July 5, 1900, no. 484. 
32. Physcia granulifera (Acu.) Tuck. 
On trees, rare. Battle lake, June 21, 1900, no. 115. 
33. Physcia pulverulenta (ScureEB.) NyL. 
On trees and rocks, frequent. Battle lake, June 18, no. 9. 
Bemidji, July 9, 1900, no. 556 and July 11, 1900, nos. 618 and 
657. Thief River Falls, July 17, 1900, no. 777, and July 18, 
1900, no. 793. Red lake, July 26, 1900, no. goo, August 1, 
1900, no. 1044 and August 2, 1900, no. 1051. 
34. Physcia stellaris (L.) Tuck. 
Abundant on trees and rare on rocks. Battle lake, June 19, 
1900, no. 23 and June 20, 1900, no. 93. Leaf hills, June 26, 
1900, no. 245. Bemidji, July 4, 1900, no. 445 and July 11, 
1900, nos. 614 and 656. Thief River Falls, July 18, 1900, nos. 
708 and 803 and July 29, 1900, nos. 836 and 859. Red lake, 
July 26, 1900, no. 886. 
35. Physcia stellaris (L.) Tuck. var. apiola Nyt. 
On rocks, rare. Leaf hills, June 26, 1900, no. 212 and Red 
lake, August 1, 1900, no. 1029. 
36. Physcia astroidea (Fr.) Nyt. 
On rocks, once collected. Red lake, August 1, 1900, no. 
1032. 
Not previously reported from Minnesota. 
37. Physcia tribacia (Acu.) Tuck. 
On pines, rare. Bemidji, July 11, 1900, nos. 627 and 661. 
Red lake, July 27, 1900, no. 917. 
38. Physcia hispida (ScuresB., Fr.) Tuck. 
On trees and rocks, rare. Henning, June 28, 1900, no. 335. 
Bemidji, July 11, 1900, nos. 632 and 655. Thief River Falls, 
July 18, 1900, nos. 781 and 791. Red lake, July 28, 1900, no. 
972 and August 2, 1900, no. 1064. 
