4 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Several students of the writer have aided materially by careful 
studies, under supervision, of many of the species described herein for 
details of microscopic structure and in subjecting portions of the 
manuscript to the test of use before publication. To all these the 
writer wishes to express his thanks. 
Full sets of specimens of the species described herein may be found 
in the United States National Herbarium, the herbarium of the 
University of Minnesota, and the writer's private herbarium. 
Below is given a list of the works hitherto published containing 
matter regarding the lichens of Minnesota. 
SPECIAL BIBLIOGRAPHY. 
Arthur, J. C., Bailey, L. H., and Holway, E. W. D. Report of Botanical Work in 
Minnesota for the year of 1886. Bull. Geol. and Nat. Hist. Surv. Minn. 3: 1-56. 
1887. Contains a list of 36 lichens collected near Lake Vermillion and determined 
by Henry Willey and F. L. Sargent. 
Bailey, L.H. See Arthur, J.C. 
Fink, Bruce. Lichens collected by Dr. ©. C. Parry in Wisconsin and Minnesota in 
1848. Proc. lowa Acad. Sci. 2: 137. 1895. A list of 23 lichens said to have been 
collected in one of the two States. 
Fink, Bruce, Contributions to a knowledge of Lichens of Minnesota. 
I. Lichens of the Lake of the Woods. Minn. Bot. Stud. 1: 693-701, N. 1896. 
II. Lichens of Minneapolis and Vicinity. Minn. Bot. Stud. 1: 703-716. My. 
1897. 
III. The Rock Lichens of Taylors Falls. Minn. Bot. Stud. 2: 1-18. Je. 1898. 
IV. Lichens of the Lake Superior Region. Minn. Bot. Stud. 2: 217-276. D. 1899. 
V. Lichens of the Minnesota Valley and Southwestern Minnesota. Minn. Bot. 
Stud, 2: 277-329. D. 1899. 
VI. Lichens of Northwestern Minnesota. Minn. Bot. Stud. 2: 657-709. My. 
1901. 
VII. Lichens of the Northern Boundary. Minn. Bot. Stud, 2: 167-236. J1. 1903. 
A series of papers containing extended notes on habitat, distribution, and ecology 
of Minnesota lichens and referred to in this volume as preliminary reports. 
Fink, Bruce. Notes concerning Iowa Lichens. Proc, Iowa Acad. Sci. 5: 174-188. 
1897. Largely a comparison of the lichen floras of parts of lowa and Minnesota. 
Fink, Bruce. Notes on the Lichen Distribution in the Upper Mississippi Valley. 
Mem. Torrey Club 6: 285-307, D. 1899. Names in the list all Minnesota lichens 
known at the time of publication. 
Fink, Bruce, and Husband, Mabel A. Notes on Certain Cladonias. The Bryologist 
6: 21-27. Mr.1903. Gives descriptionsand distribution of several Cladonias found 
in Minnesota. 
Fink, Bruce. Further Notes on Cladonias, 
II. Cladonia fimbriata. The Bryologist '7: 21-27. Mr. 1904. 
IIT. Cladonia furcata and Cladonia crispata. The Bryologist 7: 53-58. J1. 1904. 
IV, Cladonia verticillata. The Bryologist 7: 85-88. N. 1904. 
V. Cladonia gracilis. The Bryologist 8: 37-41. My. 1905. 
VI. Cladonia cariosa, The Bryologist 9: 21-24. Mr. 1906. 
VII. Cladonia subcariosa, Cladonia mitrula, and Cladonia leptophylla. The 
Bryologist 9: 57-60, J1. 1906. 
VIII. Cladonia botrytes, Cladonia caespiticia, and Cladonia delicata. The 
Bryologist 9: 89-91. N. 1906. 
