Wheeler : flora of southeastern Minnesota. 383 



No previous collection reported from Minnesota. Reported 

 by Garrison as frequent at several points near the head- 

 waters of the Mississippi. Frequent on the lowlands of 

 the Mississippi in Jefferson and Crooked Creek townships 

 and in Allamakee Co., Iowa. 



Quercus prinoides Willd. Neue Schrift. Ges. Nat. Fr. Berlin, 

 3: 397. 1801. 

 Coll. : Wheeler 360, Crooked Creek. July. 

 Not previously reported from Minnesota. Whether this is 

 the species reported by Lapham as ^ castanea Willd. 

 cannot be ascertained as there are no specimens from Lap- 

 ham's collection in the Herbarium of the University. 

 The specimens were collected from two trees on the side of a 

 bluff in section 19, township 102 N., range 4 W. 



ULMACEiE. 



Ulmus americana L. Sp. PI. 226. 1753- 



Coll. : Wheeler 24, Winnebago. June. 



Ulmus racemosa Thomas, Am. Jour. Sci. 19 : 170. 183 1. 

 Coll. : Wheeler 315, Mayville. July. 

 Infrequent on lowland near Crooked creek. 



Ulmus fulva Michx. F1. Bor. Am. i : 172. 1803. 

 Coll. : Wheeler 23, Winnebago. June. 



Celtis occidentalis L. Sp. PI. 1044. 1753. 



Coll.: Wheeler 240, Winnebago ; 278, Crooked Creek; 

 L3'on 374, Jefferson. June, Aug. 



MORACE^. 



Morus rubra L. Sp. PL 986. 1753. 



Coll. : Lyon 368, Jefferson. Aug. 

 Infrequent along Mississippi river. 



Humulus lupulus L. Sp. PI. 1028. 1753. 

 Coll. : Lyon 312, Winnebago. Aug. 



Cannabis sativa L. Sp. PI. 1027. 1753. 

 Coll. : Lyon 282, Jefferson. Aug. 



URTICACEiE. 



Urtica gracilis Ait. Hort. Kew. 3: 341. 1789. 

 Coll. : Lyon 126, Winnebago. June. 



