THE AUTHOR 



MRS. ARLENE DALE has been a research technician in the 

 Department of Botany, University of Montana, Missoula, 

 since 1964. Most of her work deals with histological 

 studies of fungi- -primarily the needlecast of conifers 

 --and of plants damaged by air pollutants. 



This paper is based on content of the thesis submitted by 

 the author as partial fulfillment of the requirements for 

 the Master of Arts degree in Botany at the University of 

 Montana. This project was supported jointly by the 

 University of Montana and the U.S. Forest Service, 

 Intermountain Forest and Range Experiment Station. 



