588 MINNESOTA BOTANICAL STUDIES. 



Myriophyllum spicatum L. Sp. PL 992. 1753. 



Coll. : MacMillan & Skinner 393, Holmes. 

 Myriophyllum verticillatum L. Sp. PL 992. 1753. 



Coll. : Ballard 2653, St. Vincent. 



ARALIACEjE. 



Aralia nudicaulis L. Sp. PL 274. 1753. 



Coll. : MacMillan & Skinner 211, Crookston. 



UMBELLIFER^E. 



Heracleum lanatum MICHX. Fl. Bor. Am. i : 166. 1803. 

 Coll. : MacMillan & Skinner 202, Crookston. 



Pastinaca saliva L. Sp. PL 262. 1753. 

 Coll. : Ballard 2662, St. Vincent. 



Washingtonialongistylis(ToRR.) BRITTON, 111. Fl. 2 : 530. 1897. 

 Coll. : MacMillan & Skinner 238, Gentilly. 



Sium cicutaefolium GMEL. Syst. 2 : 482. 1791. 



Coll. : Ballard 2593, Humboldt. 

 Zizia aurea (L.) KOCH, Nov. Act. Caes. Leop. Acad. 12 : 129. 



1824. 



Coll. MacMillan & Skinner 164, Maple lake; 206, 327, 

 Crookston. 



Zizia cordata (WALT.) KOCH in DC. Prodr. 4 : 100. 1830. 

 Coll. : MacMillan & Skinner 253, Red Lake Falls. 



Cicuta bulbifera L. Sp. PL 255. 1753. 



Coll. : MacMillan & Skinner 183, Maple lake. 



Deringa canadensis (L.) KUNTZE, Rev. Gen. PL i : 266. 1891. 

 Coll. : MacMillan & Skinner 208,. 325, 326, Crookston. 



CORNACEvE. 



Cornus stolonifera MICHX. Fl. Bor. Am. i : 92. 1803. 

 Coll. : MacMillan & Skinner 316, Crookston. 



Cornus candidissima MARSH, Arb. Am. 35. 1785. 



Coll. : Ballard 2752, Hallock ; MacMillan & Skinner 242,, 

 Red Lake Falls. 



ERICACEAE. 



Arctostaphylos uva-ursi (L.) SPRENG. Syst. 2 : 287. 1825. 

 Coll. : MacMillan & Skinner 144, Maple lake. 



