19 



1. Material collected mostly about Lafayette by Dr. J. C. Arthur and 

 H. L. BoUey. This is preserved in their own private collections and in 

 most cases duplicates have been been placed at my disposal. 



2. Some mosses collected by W. S. Blatchley in Monroe and Vigo coun- 

 ties. 



3. Material collected by E. M. Fisher mostly in Montgomery and John- 

 son counties and deposited in the herbarium of the Department of Agri- 

 culture (Division of A'^egetable Pathology). 



4. Material collected by I\I. A. Brannon illustrating a paper on " Some 

 Mildews of Indiana," read before the Academy ISSii. Duplicates of most 

 of this material have also been placed at my disposal. 



5. Material collected in the vicinity of Crawfordsville in 1.S<I3 mainly 

 by E. W. Olive. Duplicates of this material have been contributed to the 

 survey. 



6. Material collected by the writer in various counties of the state, 

 18<tl-lS!)3, including that collected since the organization of the survey. 



7. Occasional miscellaneous species collected by various individuals 

 and in our possession. 



The above represents all the cryptogamic; material that is known to be- 

 long to the state flora that is accessible at present. Some few additional 

 lists have been published but as they are not represented by accessible 

 specimens they are not considered here. 



Thanks are due to the following who have identified certain materials 

 in the line of their specialties: Prof. D. C. Elaton, Prof. R. Thaxter, Prof. 

 G. F. Atkinson, Prof. C. E. Cummings, Prof. C. K. Barnes, Charles H. 

 Peck, J. B. Ellis, E. W. D. Holway. Much assistance has been rendered 

 by various students in my la1)oratory in the preliminary determination of 

 material. 



Thanks are also due to the managers of the Vandalia road for various 

 favors that have made more extensive collections possible. 



■ LrciEN M. UxDERwoon. 



Greencastle, Indiana, December 5, 1S!»3. 



