REPORT ON A COLLECTION OF PLANTS MADE BY J. H. SANDBERG 
AND ASSISTANTS IN NORTHERN IDAHO, IN THE YEAR 1892. 
By JoHn M. HOLZINGER. 
INTRODUCTORY STATEMENT. 
The subject of this report is a collection of plants made in the season 
of 1892 by Dr. J. H. Sandberg, assisted by Mr. D. T. MacDougal and 
Mr. A. A. Heller, principally in northern Idaho, but to some extent in 
the adjacent parts of Washington and Montana. The party were com- 
missioned by the Department of Agriculture to proceed ‘into the field 
in northern Idaho and eastern Washington for the collection of the 
flora of that region.” 
The first camp was pitched 8 miles above Lewiston in the valley of 
the Clearwater, on the north side of the river at the Upper Ferry. 
There the party remained from April 23 to May 17, collecting in the 
surrounding region the plants numbered 1 to 193. The localities 
explored from Camp 1 were the valley of Clearwater River; the val- 
leys of Hatwai Creek and Snake River to the west of the camp; 
of Big Potlatch River, a northern tributary of the Clearwater, east 
of the camp; of Peter Creek, another small tributary, 2 miles east of 
the camp; and the vicinity of Lapwai Agency, the same distance to the 
southeast. 
The second camp was located in the neighborhood of Lake Waha, 
some 20 miles south of Camp 1. The party remained in that vicinity 
from May 20 to May 28, collecting the plants numbered 194 to 263, : 
The Lake Waha region and Wiessners Peak were the principal locali- 
ties visited from this camp. 
Camp 3 was in the valley of Big Potlatch River, about 4 miles from 
its entrance into Clearwater River, on the north side of the latter. 
The party remained in this vicinity until June 10, collecting plants 
numbered 264 to 375. Collections were made in the valley of Big Pot- 
latch River, the trips extending as far north as Julietta, Latah County, 
and some distance up Little Potlatch River, tributary to the Big Pot- 
latch at Julietta. The collecting grounds of Camp 1 were also revis- 
ited from this point. 
Camp 4 was pitched some 15 miles south of Moscow, Latah County, 
in the valley of Little Potlatch River, on the south side of the streain, 
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