492 GEOLOGICAL SUEYEY OF THE TEERITOEIES. 



Gentiana Farryij Engelm. — Gray's Peak, Colorado Territory, Dr, 

 Smith. 



APOCY^'ACE^. 



Apocpnim canndbinum, L. — Mud Springs. 



Apocynum androscemifoliunu L. — Fort Ellis to the Yellowstone, 



Acerates decuiiibens, Decaisne. — Madison Valley. 



^YC T AGES' ACE JE. 



Oxyhajyhiis angtistlfoUus, Sweet. — Madison Valley j Crow Agency. 



Ahronia fragrans, Xutt. — Great Salt Lake. 



Ahronia fragrans. Suit. ^ var. — Yellowstone Lake. — Varies from the 

 type in its smaller involucral bracts, which do not exceed three lines in 

 length, and its more delicate and branching habit. 



CHEXOi>ODLiCE^. 



Chenopodium alburn^ L. — Mud Springs ; Yellowstone Lake. 

 Chenoimdiiun liyhridum, L. — Fort Ellis to the Yellowstone; Mud 

 Springs. 

 BUtum capitatum, L. — Pleasant Valley ; Yellowstone Lake. 

 BUtum polymorph um, E. Meyer. — Fish Creek, Jefferson Valley. 

 Monolepis chenopodioidcSj Moq. — Pleasant Valley 5 Crow Agency. 

 Ohione canescens, Moq. — Madison Valley, Medicine Lodge. 

 Suceda depressa^ Ledeb. — Crow Agency. 



AMAEAN'TACE^. 



Amarantus albuSj L. — Fish Creek; Jefferson Valley. 



POLYGONACE^. 



Eriogonnm ccespitosumj Xutt. — Pleasant Valley; Northern Idaho. 



Eriogonum heradeoides^ Xutt. — Utah Territory; Fort EDis to the Yel- 

 lowstone. 



Eriogomnn innheUatum, Torr. — Utah Territory; Pleasant Valley; 

 Stinking Water Creek ; Yellowstone Lake. 



Eriogonum ovalifoUum^ Xutt. — Stinking Water Creek; Yellowstone 

 Lake. 



Eriogonum microtliecum^ Xutt. — Between Madison and Jefferson Elv- 

 er: Gallatin Eiver. 



Oxyria digyna, Camj^d. — Pleasant Valley ; Yellowstone Lake; Upper 

 Falls of the Yellowstone. 



Eumex saJicifolius^ Weinm. — Stinking Water Creek; Yellowstone 

 Lake. 



Eumex paucifolius^ Xutt. — Pleasant Valley; Northern Idaho. 



Polygonum riviparum^ L. — Falls of the Yellowstone. 



Polygonum Bistorta, L., var. ohlongifolium^ Meisn. — Pleasant Valley; 

 Hot Sulphur Springs; Falls of the Yellowstone. 



Polygonum amphihium^ L. — Yellowstone Lake; Medicine Lodge. 



Polygonum lapathifolium^ Ait., var. incanum, Koch. — Madison River. 



Polygonum tenue^ Michx. — Fort Ellis to the Yellowstone; Mud Springs; 

 Yellowstone Lake. 



Polygonum tenue^ Michx., var. latifolium^ Engelm. — Mud Springs. 



