412 MINNESOTA BOTANICAL STUDIES. 



Aster paniculatus Lam. Encycl. i: 306. 1783. 



Coll.: Wheeler 540, Jefferson ; 623, Brownsville. Aug. 



Erigeron pulchellus Michx. F1. 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 (Walt.) B.S.P. Prel. Cat. N. Y. 27. 1888. 



Coll. : Wheeler 530, 572, Jefferson. Aug. 

 Leptilon canadense (L.) Britton, in Brit. & Brown, 111. Fl. 3: 

 39i./.j^^7. 1898. 

 Coll. : Lyon 303, Jefferson. Aug. 

 Doellingeria umbellata pubens (A. Gray) Brittox, in Brit. & 

 Brown, 111. Fl. 3: 392. 1898. 

 Coll.: Lyon 399, Jefferson; Wheeler 581, Crooked 

 Creek. Aug. 

 Antennaria plantaginifolia (L.) Richards. App. Frank. Journ. 

 Ed. 2, 30. 1823. 

 Coll. : Lyon 23, Winnebago. June. 

 Gnaphalium obtusifolium L. Sp. PI. 851. 1753. 



Coll. : Lyon 338, 440, 465, Jefferson. Aug. 

 Polymnia canadensis L. Sp. PL 926. 1753. 



Coll.: Wheeler 316, Ma3^ville ; Lyon 344, Jefferson. 

 July, Aug. 

 Silphium perfoliatum L. Sp. PI. 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. -pi. 4. 18 19. 



Coll. : Wheeler 330, Crooked Creek. Jul}'. 

 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. 



