MICHIGAN FLORA, 



43 



Rosin-weed. 



Compass 



Plant. 



Prairie Dock. 



Cup- plant. 



Great Rag- 

 weed. 



Roman Worm- 



wood. 



Rag-weed. 



Hog-weed. 



Bitter-weed. 



Common 

 Cocklebur. 



0. & s. 



Ox-eye. 



Purple Cone- 

 flower. 



Cone-flower. 



Cone- flower. 

 Cone-flower. 

 Cone-flower. 



Sunflower. 

 Sunflower. 

 Sunflower. 



Sunflower. 

 Sunflower. 



SILPHIUM 



561. laciniafcnm, L. S 



S. Mich— Wright's Cat. 



562. terebinthinaceum, L. (***) C. & S, 



Oak openings. Ionia(!); Macomb Co. ; and south ward. Infrequent 



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. artemisiasfolia. (***) 



Roadsides. A worthless weed. 



XANTHIUM 



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



Waste places and along river banks. 

 HELIOPSIS 



568. lsevis, Pers., var. scabra, Gr. 



Banks. 

 ECHINACEA 



569. purpurea, Mceuch. 



Uniy. Herb. 

 RUDBECKIA 



570. laciniata, L. (***) 



Low grounds. 



571. speciosa, Wenderoth. 



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



572. fulgida, Ait. 



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



573. hirta, L. 



Dry soil. 

 LEPACHYS 



574. pinnata, T. & G. 



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



HELIANTHUS 



575. rigidus, Desf. 



Dry soil. Ann Arbor.— Winch. Cat. 



576. lsetiflorus, Pers. 



Grand Rapids.— Coleman's Cat. 



577. occidentals, Riddell. 



S. \\\ 



Th. 



Frequent. 



o. & s. 



Frequent. 



o. & s. 



Th. 



Common. 



0. & s. 



Infrequent. 



S. 



c. & s. 



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



InfrequenL 



578. giganteus, L. ( • « °- 



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

 Forms of this and the following species are very puMllng.and the two 

 ought probably to be considered as one polymorphous species. \ om. 



579. grosse-serratus, Martens. 



Dry plains. Ionia (1); Grand Rapids, etc. 



Frequent. 



