134 

 Fagace^. — Beech Family. 



Quercus macrocarpa, Michx. Burr Oak. 



In rich, open woods and on dry bluffs, in the vicinity 

 of streams or lakes throughout the state. The White 

 Oak {Quercus Alba) has been reported for this state, but 

 wherever specimens were received or the locality visited, 

 the tree proved to be one of the numerous forms of the 

 Burr Oak. It seems very doubtful if the white oak 

 occurs in this state. 



Ulmace^. — -The Elm Family. 



Ulmiis Americana, L. White Elm. 



Along streams and lakes throughout the state. 



Uliiius fulva, Michx. Slippery Elm. 



Extends up the Sioux river to Sioux Falls, and up the 

 Missouri river nearly to Chamberlain. A few trees were 

 also found around Buffalo Lake in the northeastern part 

 of the state, just west of the head waters of the Little 

 Minnesota. 



Celtis occidentalis, L. Hackberry. 



In the vicinity of lakes and streams throughout the 

 state. 



MoRACE^. — The Mulberry Family. 



Morus rubra, L. Red Mulberry. 



This tree is found naturally only in the extreme 

 southeastern county of the state, along the Sioux river; 

 Elk Point. 



Humulus Lupulus, L. Hops. 



In thickets bordering streams and lakes throughout 

 the state. 



Cannabis sativa, L. Hemp. 



Sparingly introduced into the state from the Missouri 

 river eastward. 



