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ON THE GEOLOGY AND NATURAL HISTORY 
Lithospermum ongustifolium , Michx. Near mouth of Powder river on Yellowstone. 
Mertensia lanceolata , D. C. White river and Bad Lands to Fort Pierre. 
Myosotis verna , Nutt. Bad Lands and Fort Pierre. 
Echinospermum Lappula , Lehm. Fort Pierre. 
Echinospermum patulum , Lehm. From Niobrara and White river to Bad Lands, 
Fort Pierre, and Yellowstone. More abundant than the last. 
Echinospermum stridum, Nees. Fort Pierre. 
Eritrichium glomeratum, D. C. Fort Pierre, Bad Lands to the Yellowstone. The 
young specimens from White river are white canescent, the old ones from Fort 
Union are very rough and green; the seeds are more or less tubercled, style per- 
sistent, much thickened below. 
Eritrichium floro-cinereum , Torr. (ined. Fendler plants.) On Platte river near Fort 
Laramie. 
Eritricliium micranthum , Torr. (Fendler, 635.) Niobrara river, August 16th. 
Eritrichium suffruticosum, Torr. Fort Laramie, August 13th. 
Gynoglossum Morrisoni , D. C. Fort Pierre and White river. 
HYDBOPHYLLACEiE. 
Hydrophyllum Virginicum , Linn. Council bluffs and higher up on the Shady river 
banks. 
Hydrophyllum appendicu la turn , Michx. Fort Pierre. 
Hydrophyllum macrophyllum , Nutt. Shady woods as high up the Missouri as mouth 
of White river, and in White river valley. Most abundant in the carboniferous 
limestone regions of Council bluffs, April. 
Ellisia ambigua, Nutt. Prairies and woods from Fort Leavenworth to the Yellow¬ 
stone. The larger specimens, have the flowers frequently in naked racemes. 
Ellisia Nydelea , Linn. About old houses and gardens to Big Sioux, and along old 
roads in prairie dog villages on the Upper Missouri. 
Phacelia circinata, Jacq. In Kansas ; Dr. Cooper. 
POLEMONIACEiE. 
Phlox reptans , Linn. Above Council bluffs. 
Phlox pilosa , Linn. Above Council bluffs. 
Phlox Hoodii , Hook. Fort Union to Bad Lands. 
Phlox divaricata , Linn. Council bluffs and Platte valley. 
Gollomia linearis , Nutt. Common about Fort Pierre; Fort Union. 
Gilia longifiora , Torr. In sandhills of Niobrara river. 
Gilia congesta , Hook. White river to Yellowstone. 
CONVOLVULACEiE. 
Calystegia sepium, B. Br. Council bluffs to Yellowstone, Loup fork. 
Botanical 
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