Holzinger: determinations of plants. 551 



GERANIACEAE. 



Geranium carolinianum L. Sp. PI. 682. 1753. 



On rocks. Thompson, and lake Itasca region. June. Nos. 

 153, 1071. 



Geranium maculatum L. Sp. PI. 681. 1753. 



Copses. Thompson, and Minneapolis. June. Nos. 123, 272. 



OXALIDACEAE. 



Oxalis acetosella L. Sp. PI. 433. 1753. 



Damp cold woods. Two Harbors. July. No. 537. 



Oxalis stricta L. Sp. PI. 435. 1753. 

 Copses. Cannon Palls. July. No. 381. 



LIN ACE AE. 



Linum sulcatum Riddell. Suppl. Cat. Ohio PI. 10. 1836. 

 Cannon Falls. June. No. 325 a. 



RUTACEAE. 



Xanthoxylum americanum Mill. 

 Copses. Center City. July. No. 660. 



POIYGALACEAE. 



Polygala cruciata L. Sp. PI. 706. 1753. 

 Meadows. Minneapolis. September. No. 987. 



Polygala polygama Walt. Fl. Car. 179. 1788. 



Sandy soil. Cannon Falls; Sandy lake. June, August. 

 Nos. 342, 781. 



Polygala irridescens L. Sp. PI. 705. 1753. 

 Moist places. Centerville. July. No. 704. 



Polygala senega L. Sp. PI. 704. 1753. 



Dry hills. Lake Itasca. Sought by Chippewa Indians for 

 its medicinal properties. June. Nos. 263, 1060. 



Polygala verticillata L. Sp. PL 706. 1753. 

 Sandy lake. August. No. 784. 



EUPHORBIACEAE. 



Euphorbia heterophylla L. Sp. PI. 453. 1753. 



Sandy hillsides. Minnehaha falls. September. No. 944. 



Euphorbia serpylllfolia Pers. Syn. 2:14. 1807. 



Sandy hills. Morrison county; Minnehaha falls. Septem- 

 ber. Nos. 888, 943 



