412 MINNESOTA BOTANICAL STUDIES. 
Aster paniculatus Lam. Encycl. 1: 306. 1783. 
Coll.: Wheeler 540, Jefferson; 623, Brownsville. Aug. 
Erigeron pulchellus Micux. Fl. Bor. Am. 2: 124. 1803. 
Coll.: Lyon 28, Winnebago. June. 
Erigeron annuus (L.) Pers. Syn. 2: 431. 1807. 
Coll.: Lyon 84, 420, 432, Winnebago; Wheeler 562, 
Jefferson. Aug. 
Erigeron ramosus (WaALT.) B.S.P. Prel. Cat. N. Y. 27. 1888. 
Coll.: Wheeler 530, 572, Jefferson. Aug. 
Leptilon canadense (L.) Britton, in Brit. & Brown, Ill. Fl. 3: 
Olay. GO27. T3808. 
Coll’: Lyon 303, Jefferson: Aug. 
Doellingeria umbellata pubens (A. Gray) Brirtron, in Brit. & 
Brown, iil Fl. 3: 392. <1808: 
Coll.: Lyon 399, Jefferson; Wheeler 581, Crooked 
Creek. “Aug, 
Antennaria plantaginifolia (L.) RicHArps. App. Frank. Journ. 
Ed. 2; 30... 1823. 
Coll.: Lyon 23, Winnebago. June. 
Gnaphalium obtusifolium L. Sp. Pl. 851. 1753. 
Coll.: Lyon 338, 440, 465, Jefferson.” Aug. 
Polymnia canadensis L. Sp. Pl. 926. 1753. 
Coll. : Wheeler 316, Mayville; Lyon~ 344, Jetfersous 
July, Aug. 
Silphium perfoliatum L. Sp. Pl. Ed. 2, 1301. 1763. 
Coll.: Lyon 215, 240, Crooked Creek. July. 
Silphium laciniatum L. Sp. Pl. 919. 1753. 
Coll.: Wheeler 297, Crooked Creek. July. 
Heliopsis helianthoides (L.) B.S.P. Prel. Cat. N. Y. 28. 1888. 
Coll.: Wheeler 614, Brownsville. Aug. 
Heliopsis scabra DuNAL, Mem. Mus. Paris, 5: 56. f/. 4. 1819. 
Coll.: Wheeler 330, Crooked Creek. July. 
Rudbeckia triloba L. Sp. Pl. 907. 1753. 
Coll.: Wheeler 502, Winnebago; 535, Jefferson. Aug. 
Not previously reported from Minnesota. Infrequent, edges 
of thickets. 
Rudbeckia hirta L. Sp. Pl. 907. 1753. 
Coll.: Wheeler 301, 329, Crooked Creek; 613, Browns- 
ville. July, Aug. 
