182 ON THE GEOLOGY AND NATURAL HISTORY 
59. Butimus Lusricus, Mull, Fort Berthold, on Missouri. 
60. SUCCINEA VENUSTA, Say, Yellowstone. 
61. SuccINEA RETUSA, Lea, ae 
62. SucctinEA Haypent, W. G. Binney, ‘6 
63. SUCCINEA LINEATA, W. G. Binney, Fort Union and Yellowstone. 
64. SuccinrA NutTTraLiiaNna, Lea, Fort Union. 
65. SUCCINEA OBLIQUA, Say, Fort Berthold, Nebraska Ter. 
CHAPTER XVIII. 
BOTANY. 
BY GEORGE ENGELMANN, M.D. 
RANUNCULACE. 
Clematis Virginiana, Linn. Very abundant from the mouth of the Missouri river 
to Council bluffs. 
Clematis ligusticifolia, Nutt. Fort Pierre to the mountains. Very abundant about 
Fort Union, Fort Laramie, and head of the Platte. 
Pulsatilla putens, D. C. This plant is called by the Indians the harbinger of spring. 
I saw it on the south side of Bear Peak, March 9, 1855, just coming into bloom. 
It is feund quite abundantly in the White river valley; also in the sandhills of 
Loup fork. 
Anemone Pennsylvanica, Linn, Abundant from the mouth of the Missouri to the 
mountains, though most common below latitude 43°. 
Anemone Caroliniana, Walt. Quite common around Council bluffs to Niobrara river. 
Anemone cylindrica, Gray. This plant is quite rare; only a few individuals were 
seen near the mouth of the Big Sioux river, and on Loup fork. 
Ranunculus repens var. Marylandicus, Torr. & Gray. Low, wet places on the Upper 
Missouri. 
Ranunculus Pennsylvanicus, Linn. Council bluffs, Niobrara, Platte valley. 
Ranunculus recurvatus, Poir. Mouth of the Missouri to Niobrara river; also spar- 
ingly in White river valley. 
Ranunculus abortivus, Linn. Wet and sandy places to Niobrara; sparingly to the 
mountains. 
Ranunculus sceleratus, Linn. Not rare throughout the Upper Missouri country. 
Ranunculus ylaberrimus, Hook. The only locality in which I ever saw this plant 
was at Grindstone hills, near Bad Lands, where it was in bloom on the 9th of 
April. 
Ranunculus cymbalaria, Pursh. Seen on the Yellowstone and Missouri. 
