BEAL ON MICHIGAN FLORA. 135 



TUSSILAGO L. 



2212. T. Farfara L. Sault de Ste. Ifarie, Whitney's Cat.; Washington, Macomb 

 Co., W. A. Brotherton. 



PETASITES Gaertn. 



2213. P. palmata (Ait.) A. Gray. Harrisville, Oscoda, Alger, and westward; Ke- 

 weenaw Co., 0. A. Farwell; St. Clair Co., C. K. Dodge. 



ARNICA L. 



2214. A. lanceolata Nutt. Northern Arnica. Shores of Lake Superior, Gray's 

 Manual; Copper Harbor, Whitney's Catalogue. "It has been confused with A. Cham- 

 issonis of the west." Britton's Manual. 



ERECHTITES Raf. 



*2215. E. hieracifolia (L.) Raf. Fireweed. New clearings. Common northward. Th. 



MESADENIA Raf. Cacalia L., in part. 



2216. M. atriplicifolia (L.) Raf. Pale Indian Plantain. Cacalia atriplicifoJia L. 

 Woods. Ionia Co.; Alma; Ann Arbor; Manistee and Sturgis, F. P. Daniels; Battle 

 Creek, VV. S. Cooper; Berrien Co., H. S. Pepoon. Frequent. 



2217. M. tuberosa (Nutt.) Britton. Tuberous Indian Plantain. Cacalia tuberosa 

 Nutt. S. Mich., Wright's Cat.; three miles east of Kalamazoo, 1838, Dr. D. Houghton; 

 Huron and Tuscola counties; Mottville, I. N. Mitchell; Bay Co., G. M. Bradford. 



SYNOSMA Raf. Cacalia L., in part. 



2218. S. suaveolens (L.) Raf. Sweet-scented Indian Plantain. Cacalia sauveolens 

 L. Lodi, Miss Clark, in Winch. Cat.; Gray's Manual. Rare. 



SENECIO L. 



*2219. S. aureus L. Golden Ragwort. Squaw-weed. Very variable. Common. Th. 



2220. S. aureus gracilis (Pursh.) Britt. A slender form of the Life-root, is fre- 

 quent at Linden Park. Detroit, O. A. Farwell. 



2221. S. aureus lancelatus Oakes. Muskegon Co., C. D. McLouth. 



*2222. S. Balsamitae Muhl. Balsam Groundsel. 8. aureus Balsamitae T. & G. 

 Berrien Co., H. S. Pepoon. Northward to Keweenaw Co. 



*2223. S. discoideus (Hook.) Britton. North of Chandler's marsh near Lansing, 

 W. J. B.; Keweenaw Co., 0. A. Farwell. 



*2224. S. obovatus Muhl. Round-leaf Squaw-weed. S. aureus obovatus T. & G. 

 More common southward. 



*2225. S. vulgaris L. Common Groundsel., Flint; Macomb Co.; S. W. Mich. Wright's 

 Cat.; Keweenaw Co., O. A. Farwell. 



ARCTIUM L. 



*2226. A. Lappa L. Great Burdock. Waste places. Common. Th. 

 2227. A. minus Schk. Common Burdock. A. Lappa minus A. Gray. Keweenaw 

 Co., 0. A. Farwell; Bay Co., G. M. Bradford. 



CARDUUS L. Cnicus L. in part. 



*2228. C. altissimus L. Tall Thistle. Cnicus altissimiis Willd. Ionia Co.; Ann 

 Arbor; Flint; Macomb Co.; Bay Co., G. M. Bradford. Infrequent. C. & S. 



*2229. C. arvensis (L.) Robs. Canada Thistle. Cnicus arvensis Hoffm. Fields. A 

 vile pest, introduced from Europe. Th. 



2230. C. crispus L. Port Huron, C. K. Dodge. Introduced from Europe. 



*2231. C. discolor (INIuhl.) Nutt. Field Thistle. Cnictis altissimvs discolor A. Gray, 

 Meadows. Montcalm Co.; Tuscola Co.; Ann Arbor; Ionia Co.; Flint; and southward. 

 Flowers sometimes white. Infrequent. C. & S. 



2232. C. Hillii (Canby.) Porter. Hill's Thistle. Cnicus Hillii Canby. Muskegon, 

 C. F. Wheeler; Rochester, 0. A. Farwell. 



