310 PROCEDINGS OF THE ACADEMY OF [1898. 



Synthyris reniformis major Hook. 



June 26, 1806. Hungry Creek, as said. 

 Salvia lanceolata Willd. S. tricJiostemmoirfes Pursh, Fl. 19. 



September 21, 1804- Big Bend of the Missouri, as said. 

 Scutellaria angustifolia Pursh, Fl. 412. 



June 5, 1806. Camp Chopunnish. 



Oxybaphus nyctagineus Sweet. Allionia ovata Pursh, Fl. 97. 



September 1, 180 4-. At or near Bonbomme Island, South Dakota. 

 Atriplex canescens James. Calligonum canescena Pursh, Fl. 370. 



September 21, 1804- Big Bend of the Missouri, as said. 

 Atriplex nuttalli Wats. 



July 20, 1806. " High plains of Missouri " is doubly impossible : 

 there are no high plains in Missouri, and if high plains of the 

 Missouri River be meant, it is wrong ; for at this date Lewis was 

 high up on Maria's River, and Clark was on the Yellowstone. 

 Sarcobatus maculatus Ton-. 1 



July 20, 1806. As last said. This is the " pulpy leaved thorn " 

 of L. & C, p. 325, p. 462, and p. 463, of my edition, there correctly 

 identified by Mr. Knowlton as S. vermicularis. 



Polygonum bistortoides Pursh, Fl. 271. 



June 12, 1806. Quamash flats, as said, but by no means " on the 

 banks of the Missouri," as Pursh says, for there are none such. 

 Among the several Quamash flats described and mapped by L. and 

 C the one where they were on June 12, 1806, is the Weippe or 

 Oyipe Prairie near the west end of the Lo Lo Trail, in Shoshone 

 Co., Idaho. 

 Elaeagnus argentea Pursh, Fl. 114. 



July 6, 1806. Prairie of the Knobs, on Big Blackfoot River. 

 Shepherdia argentea Nutt. Hippophce argentea Pursh, Fl. 115. 



A. No. 39, no date. But date is easily supplied, if the specimen 

 was "obtained at the mouth of the River Quicourre ;" for this is a 

 L. and C. way of spelling L'Eau qui Court, French name of Running 

 Water or Niobrara River, where L. and C. camped September 4, 

 1804; they passed it again September 6, 1806, but that the former 

 date is the one is shown by the fact they speak of sending the speci- 



1 Sarcobatus maculatus Torr., in my paper, was a misprint for Sarcobatus 

 vermicularis Torr. (J. M.) 



