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 these 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 
