188 



545. A. shortii Hoolc. 



Common in dry, open places. 



546. A. uova-angliae L. 



Common along the railroad. 



547. A. ericoides L. White Heath Aster. 



Common along the railroad. 



548. Ei'igeron aunnus (L.j Pers. Daisy Fleabone. 



An abundant weed in fields. 



549. Leptilon canadense (L.) Britton. Horseweed. {Erigeron canadensis L.) 



Common in open places. 



550. Antennaria plantiginifolia (L.) Richards. Plantain-leaved Everlast- 



ing. 



Quite common in diy places and open woods. 



551. Gnaphalium oblusifolium L. Common Everlasting. (G. polycephalum 



Michx.) 



Common in diy places. 



552. Silphium perfoliatum L. Cup Plant. 



Some found in low, rich ground up Cherry Creek. 



553. S. integi'i folium Michx. Entire-leafed Rosinweed. 



Rather common in low places along the railroad. 



554. S. terebinthinaceum Jacq. Prairie-dock. 



Not rare in damp places. 



555. Heliopsis scabra Dunal. Rough Ox-eye. 



A few scattered patches noted in dry places. 



556. Rudbeckia hirta L. Black-eyed Susan. 



Common in both dry and moist soil. 



557. R. laciniata L. Tall Cone Flower. 



A few plants noted; grows in moist ground. 



558. Ratibida pinnata (Vent.) Barnhart. Gray-headed Cone Flower. (Le- 



pacJiys pinnata T. and G.) 



Rather common along roadsides. 



559. Helianthus giganteus L. Giant Sunflower. 



Common and widely scattered in moist rich soil. 



560. H. divaricatus L. Rough Sunflower. 



Common in dry woods. 



561. Verbesina alternifolia (L.) Britton. (Actinomeris sqiianosa Nutt.) 



Not rare in low woods. 



