384 MINNESOTA BOTAXICAL STUDIES. 



Urticastrum divaricatum (L.) KUNTZE, Rev. Gen. PI. 635. 



1891. 



Coll.: Lyon 117, Winnebago ; 358, Jefferson. June, 

 Aug. 



Adicea pumila (L.) RAF. ; Torr. Fl. N. Y. 2 : 223. As syn- 

 onym. 1843. 



Coll.: Wheeler 327, Mayville ; 653, Jefferson. July, 

 Aug. 



Parietaria pennsylvanica MUHL. ; Willd. Sp. PI. 4; 955. 



1806. 

 Coll. : Lyon 191, Crooked Creek. July. 



SANTALACE^E. 



Comandra umbellata (L.) NUTT. Gen. i: 157. 1818. 

 Coll. : Lyon 90, Winnebago. June. 



ARISTOLOCHIACEJE. 



Asarum canadense L. Sp. PI. 442. 1753. 

 Coll. : Wheeler 57, Winnebago. June. 



POLYGONACE^E. 



Rumex acetosella L. Sp. PI. 338. 1753. 

 Coll. : Lyon 130, Winnebago. June. 



Rumex crispus L. Sp. PL 335. 1753. 



Coll. : Lyon 127, 158, Winnebago. June. 



Polygonum hartwrightii A. GRAY, Proc. Am. Acad, 8 : 294. 



1870. 

 Coll. : Wheeler 606, Brownsville. Aug. 



Polygonum emersum (Micnx.) BRITTON, Trans. N. Y. Acad. 



Sci. 8: 73. 1879. 

 Coll. : Wheeler 394, 458, Jefferson. July, Aug. 



Polygonum incarnatum ELL. Bot. S. C. & Ga. i : 456. 1817. 

 Coll. : Wheeler 419, Jefferson. July. 



Polyonum hydropiper L. Sp. PI. 361. 1753. 

 Coll. : Lyon 494, Jefferson. Aug. 



Polygonum punctatum ELL. Bot. S. C. & Ga. i : 455. 1817. 

 Coll. : Wheeler 537, 539, Jefferson. Aug. 



Polygonum orientale L. Sp. PI. 362. 1753. 

 Coll. : Wheeler 448, Jefferson. Aug. 



