MICHIGAN FLOKA. 



467 



Rosin-weed. 



Compass 



Plant. 



Prairie Dock. 



Cup-plant. 



Great Rag- 

 weed. 



Roman Worm- 

 wood. 

 Rag-weed. 

 Hog-weed. 

 Bitter-weed. 



Common 

 Cocklebur. 



Ox-eye. 



Purple Cone- 

 flower. 



Cone-flower. 



Cone-flower. 

 Cone-flower. 

 Cone-flower. 



Sunflower. 

 Sunflower. 

 Sunflower. 



Sunflower. 

 Sunflower. 



S1LPHIUM 



561. laciniatum, L. 



S. Mich.— Wright's Cat. 



562. terebinthinaceum, L. (***) 



Oak openings. Ionia (!); Macomb Co.; and southward. 



563. integrifolium, Michx. 



S. W.— University Herb. 



564. perfoliatum, L. 



S. Mich.— Wright's Cat. 

 AMBROSIA 



565. trifida, L. (***) 



Low grounds along Grand and Maple Rivers, abundant, etc. 



566. artemisisefolia. (***) 



Roadsides. A worthless weed. 



s. 

 c. & s. 



Infrequent 



0. & s. 

 c. & s. 



Abundant. 



c. & s. 



Common. 



C.& s. 



Common. 



8. W. 



XANTHIUM 



567. strumarium, L., var. echinatum, Gr. (**) 



Waste places and along river banks. 



HELIOPSIS 



568. Isevis, Pers., var. scabra, Gr. 



Banks. 



ECHINACEA 



569. purpurea, Mceuch. 



Univ. Herb. 

 RUDBECKIA 



570. laciniata, L. (***) Th. 



Low grounds. Frequent. 



571. speciosa, Wenderoth. C. & S. 



Dry soil. Ionia Co. (!); Flint; Macomb Co. ; Ann Arbor. Frequent. 



572. fulgida, Ait. 0. & S. 



Ann Arbor.— Miss Clark; Grand Rapids.— Coleman's Cat., etc. 



573. hirta, L. Th. 



Dry soil. Common. 



LEPACHYS 



574. pinnata, T. & G. C. & S. 



Dry ground. Ionia Co. (!); Grand Rapids; S. Mich. Infrequent. 



HELIANTHUS 



575. rigidus, Desf. S. 



Dry soil. Ann Arbor.— Winch. Cat. 



576. laetiflorus, Pers. 



Grand Rapids.— Coleman's Cat. 



577. occidentals, Kiddell. 0. & S. 



Sterile soil. Ionia Co. (!); Flint; Grand Rapids; Macomb Co.; etc. 



Infrequent. 



578. giganteus, L. 0. & S. 



Low grounds; variable. Ionia Co. (!); Flint; Ann Arbor; Macomb Co. 

 Forms of this and the following species are very puzzling, and the two 

 ought probably to be considered as one polymorphous species. Com. 



579. gro-sse-serratus, Martens. 



Dry plains. Ionia (!); Grand Rapids, etc. Frequent. 



