Wheeler: FLORA OF SOUTHEASTERN MINNESOTA. 401 
Previously collected only in Winona and Wabasha counties. 
Rare in moist woods. 
OLEACEZ. 
Fraxinus lanceolata Borcx. Handb. Forst. Bot. 1: 826. 1800. 
Coll.: Lyon 300, Jefferson. Aug. 
Fraxinus nigra Marsu. Arb. Am. 51. 1785. 
moll. = Lyon 273, Crooked Creek. June. (Plate XXII., 
B.) 
GENTIANACEZ. 
Gentiana crinita FRoEL. Gen. 112. 1796. 
Coll.: Lyon 454, 488, Jefferson. Aug. 
Gentiana quinquefolia L. Sp. Pl. 230. 1753. 
Coll.: Lyon 455, 487, Jefferson. Aug. 
Gentiana flavida A. Gray, Journ. Sci. (II.) 1: 180. 1846. 
Coll.: Wheeler 516, Winnebago; 596, Crooked Creek. 
Aug. 
APOCYNACEZ. 
Apocynum androsemifolium L. Sp. Pl. 213. 1753. 
Coll.: Lyon 188, Crooked Creek. July. 
Apocynum cannabinum L. Sp. Pl. 213. 1753. 
Coll.: Lyon 471, Jefferson. Aug. 
Apocynum cannabinum glaberrimum DC. Prodr. 8: 439. 1844. 
Coll. : Lyon 357, Jefferson. Aug. 
ASCLEPIADACEZ. 
Asclepias tuberosa L. Sp. Pl. 217. 1753. 
Coll.: Wheeler 287, 369, Crooked Creek; Lyon 356, 
Jefferson. July, Aug. 
Asclepias incarnata L. Sp. Pl. 215. 1753. 
Coll. : Lyon 177, Winnebago; 365, Jefferson. June, Aug. 
Asclepias obtusifolia Micux. Fl. Bor. Am. 1: 115. 1803. 
Coll.: Wheeler 569, Jefferson. Aug. 
Previously reported only by Lapham. Infrequent on dry 
hillsides. 
Asclepias exaltata (L.) Munt. Cat. 28. 1813. 
Coll.: Lyon 178, Winnebago. July. 
Asclepias syriaca L. Sp. Pl. 214. 1753. 
Coll.: Lyon 176, Winnebago. July. 
