384 MINNESOTA BOTANICAL STUDIES. 
Urticastrum divaricatum (L.) Kunrze, Rev. Gen. Pl. 635. 
1891. 
Coll.: Lyon 117, Winnebago; 358, Jefferson. June; 
Aug. 
Adicea pumila (1.) Rar.; ‘Torr: Fl. iN: ‘Y./2: 223: Asiegee 
onym. 1843. 
Coll.: Wheeler 327, Mayville; 653, Jefferson. July, 
Aug. 
Parietaria pennsylvanica Munx.; Willd. Sp. Pl. 4; 955. 
1806. 
Coll.: Lyon 191, Crooked Creek. July. 
SANTALACEZ. 
Comandra umbellata (L.) Nutr. Gen. 1: 157. 1818. 
Coll.: Lyon 90, Winnebago. June. 
ARISTOLOCHIACEZ. 
Asarum canadense L. Sp. Pl. 442. 1753. 
Coll.: Wheeler 57, Winnebago. June. 
POLYGONACEZ. 
Rumex acetosella L. Sp. Pl. 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 (Micux.) Brirron, Trans. N. Y. Acad. 
Scl.8 3978.) 107 ee 
Coll. : Wheeler 394, 458, Jefferson. July, Aug. 
Polygonum incarnatum ELL. Bot. S. C. & Ga. 1: 456. 1817. 
Coll.: Wheeler 419, Jefferson. July. 
Polyonum hydropiper L. Sp. Pl. 361. 1753. 
Coll.: Lyon 494, Jefferson. Aug. 
Polygonum punctatum Ex. Bot. S. C. & Ga. 1: 455. 1817. 
Coll. Wheeler 539; 530, Jetfersen: Aug. 
Polygonum orientale L. Sp. Pl. 362. 1753. 
Coll.: Wheeler 448, Jefferson. Aug. 
