them with the then current names. Most sheets, therefore, bear three 
separate tickets from three sources. Elliott Coues, ornithologist and 
pibliographer, has written a critical commentary upon the botanical 
collections of the expedition (Proc. Phila. Acad. Nat. Sci. 1898: 291- 
315). 
The next figure to appear in our region was David Douglas, 
(1799-1834) whose classical and extensive collections are the basis 
for the study of the flora of the Northwestern States and California. 
Douglas collected but little in Idaho, however, but on July 2h, 1826, 
he was at the mouth of the Clearwater River and between July 24 and 30, 
was at Lewiston and in the adjacent Craig Mountains. 
Following Douglas, in 1832-33,came the Boston fur-trader, 
Nathaniel Jarvis Wyeth (1802-1856), who, on his return journey crossed 
northern Idaho, following the Clark Fork to its junction with the Mis- 
soula. He wade a small plant collection along the Fiathead River in 
Montana, but apnarentiy preserved no collections from northern idaho. 
He was accompanied on a second journey (1834) by Thomas Nuttall, but 
did not reach as fear north as our region. Dr. Charles Pickering and 
Mr. W(illian) (union) Brackenridge, botanists of the Wilkes Expedition, 
reached Lanwai, Idaho on June 25, 1841, but apparently made few if any 
botanical collections in the vicinity. 
The next botanical collector in this region, therefore, and 
in imgortance second only to Lewis, vas the German, C(hariés) A(ndreas ) 
Geyer (1809-1853), who had collected in Illinois previous to his Jour- 
, to Idaho. In November 1843, Geyer crossed 4 high spur 9: 
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