LIST OF THE PLANTS COLLECTED 41 



115 Sali.v flifiiatiiis Xutt. 



Locally abundant on the Little Missouri floodplain; also in 

 the Short Pines. 



116 Sali,r Sconlcriana Barr. Red Willow. 

 In gulches in the several forested buttes. 



23. BETULACEAE (Birch Family) 



117 Betnla papvrifcra Marsh. 



Frequent in the valleys of the West Short Pine Hills. 

 :; -n8 Bctula foutinalis Sarg. 



Found only once, about bog in the North Cave Hills. 



24. ULMACEAE (Elm Family) 



119 Ulmus fuh'a Michx. Red or Slippery Elm. 



Rare, found sparingly in canyons of the Forest Reserves. 

 Trees of a fair size seen only in South Cave Hills. 



25. MORACEAE (Mulberry Family) 



120 Hninulns Iiipulus L. Hop. 



Frequently met with in the ash thickets in gulches of forested 



buttes. 



26. URTICACEAE (Nettle Family) 



121 L'rtica gracilis Art. Nettle. 



Fairly common on moist ground in the Slim Buttes and else- 

 where in high open valleys. 



27. SAXTALACEAE (Sandalwood Family) 



i22Comcndra pallid a A. DC. Bastard Toadflax. 



Tolerably frequent on foothills of buttes. especially on sandy 

 es. 



POLYGONAOEAE (Buckwheat Family) 

 123 Eriogonum annuum Nutt. 



Abundant on the steppe. In flower as late as Aug. 25. 

 *I24 l : ,i'io^onui:i cenir.un Nutt. 



Abundant in caverns in the Cave Hills. 



125 Eriogonum crassifoliuw Benth. 

 Comm n n sand. 



126 Eriogcnum flawm Nutt. 



n hilltops in rocks. 



