JACKSON: UREDINALES OF OREGON 199 



Many of the collections made by the writer at localities outside of 

 Benton County have been picked up in spare moments on trips taken 

 in connection with Experiment Station or Extension Service duties. 

 During 1914 and 1915, however, a number of special excursions were 

 made primarily for collecting this group of fungi. 



In addition to those made by the writer, several hundred collections 

 made by his former associates, assistants and students at the Oregon 

 Agricultural College are included. The greater number of these were 

 collected by Prof. H. P. Barss, Mr. F. D. Bailey and Mr. G. B. Posey. 

 To these have been added a considerable number of records obtained 

 from miscellaneous sources. Several of these were obtained from the 

 herbarium of the New York Botanical Garden, and of the National 

 Museum. A considerable number are in the Arthur Herbarium at 

 the Purdue University Agricultural Experiment Station. The greater 

 number of theee were obtained originally from phanerogamic speci- 

 mens mainly collected and distributed by pioneer botanists of the 

 region, particularly W. C. Cusick, Thomas Howell, J. B. Lieberg and 

 E. P. Sheldon, E. R. Lake and others. 



A few collections were made in Oregon by Dr. David Griffiths and 

 associates, most of which were distributed in his "West American 

 Fungi." Mr. E. Bartholomew collected at a few localities in Oregon 

 in 1915 and distributed the specimens in the exsiccati, "Fungi Colum- 

 biani" and "North American Uredinales," which he edits. A number 

 of specimens of rusts, the records of which were obtained mainly 

 from the Arthur Herbarium, were made by Moses Craig, at one time 

 botanist at the Oregon Agricultural College. It is evident that he 

 made quite an extensive collection of rusts in Oregon, but the location 

 of his collection at the present time is unknown to the writer. 



One*- of the most interesting collections which it has been the 

 privilege of the writer to examine was made by Dr. J. R. Weir, mainly 

 in the northeastern and southwestern parts of the State. This col- 

 lection consists of about 130 numbers and was sent to this laboratory 

 for study in 1915 and 1916. Another interesting collection of about 

 30 numbers was made by Dr. E. P. Meinecke in southwestern Oregon 

 and forwarded to the writer for study. 



Approximately thirteen hundred collections have been examined in 

 the preparation of this account and are listed in the following pages. 

 By far the greater number of these, about one thousand, were made in 

 western Oregon, including the Cascade Mountains. Of this number 

 about six hundred were made in the Willamette Valley, four hundred 

 having been collected in Benton County, mostly in the vicinity of 

 Corvallis. Two hundred and fifty are listed from the Cascade moun- 

 tain region, most of the collections having been made in the vicinity 



