134 MICHIGAN ACADEMY OF SCIENCE. 



*2187. B. frondosa L. Common Beggar-ticks. Stick-tight. Low grounds. A trouble- 

 some weed. Common. Th. 



2187a. B. trichosperma (Michx.) Britton. Orion, O. A. Farwell. 



2188. B. trichosperma tenuiloba (A. Gray) Britton. Coreopsis trichosperma 

 tenuiloba A. Gray. Swamps. Flint; Montcalm Co.; Ionia Co.; S. Mich., Wright's Cat.; 

 Orion, O. A. Farwell. Common in pine country. Infrequent elsewhere. 



2188a. B. vulgaris Greene. Detroit, O. A. Farwell. 



2188b. B. vulgaris puberula (Wieg.) Greene. Detroit, 0. A. Farwell. 



GALINSOGA R. & P. 



2189. G. parviflora Cav. Detroit, W. S. Cooper. Introduced. 



HELENIUM L. 



*2190. H. autumnale L. Sneeze- weed. River banks. Common. C. & S. 

 2191. H. tenuifolium Nutt. Fine-leaved Sneeze-weed. Port Huron, C. K. Dodge. 



ACHILLEA L. 



2192 A. lanulosa Nutt. Western Yarrow. Rochester, W. S. Cooper; Frequent in 

 U. P., O. A. Farwell. 



*2193. A. Millefolium L. Common Yarrow or Milfoil. Fields. Common. 

 2193a. A. Ptarmica L. Sneezewort. Mich., Gray's Manual. Rare. Th. 



ANTHEMIS L. 



2194. A. arvensis L. Corn Chamomile. Introduced. Three Rivers, C. F. Wheeler; 

 Keweenaw Co., near Detroit, 0. A. Farwell; St. Glair Co., C. K. Dodge. 



*2195. A. Cotula DC. May-weed. Dog-Fennel. Roadsides. Common. Th. 



CHRYSANTHEMUM L. 



2196. C. Balsamita tanacetoides Boiss. Mint-Geranium. Escaped from gardens. 

 *2197. C. Leucanthemum L. Ox-eye or White Daisy. Meadows and pastures. Th. 

 2197a, C. Parthenium (L.) Pers. Keweenaw Co., 0. A. Farwell. 



MATRICARIA L. 



2198. M. inodora L. Scentless Camomile. Flint. Dr. D. Clark. 



TANACETUM L. 



2199. T. Huronense Nutt. Lake Huron Tansy. Sand dunes at the head of Little 

 Traverse Bay, and northward. Frequent; Elk Rapids, W. S. Cooper. 



*2200. T. vulgare L. Common Tansy. Escaped from gardens. Frequent. 

 *2201. T. vulgare crispum DC. More common than the species. 



ARTEMISIA L. 



2202. A. Abrotanum L. Southernwood. Escaped in Keweenaw Co.. 0. A. Farwell. 



2203. A. Absinthium L. Common Wormwood. Ionia Co.: Flint; Gratiot Co.; 

 Keweenaw Co., O. A. Farwell. Sparingly escaped from gardens. 



2104. A. annua L. Annual Wormwood. Detroit, O. A. Farwell; New Baltimore, 

 J. W. Stacey. 



*2205. A. biennis Willd. Biennial Wormwood. A roadside weed, lately introduced 

 from the west and extending throughout the State. 



2200. A. Canadensis Michx. Canada Wormwood. ' Sand dunes. Barren Lake; 

 New Buffalo, C. F. Wheeler; Ottawa Co.; Emmet Co.; to Lake Superior. Th. 



*2207. A. caudata Michx. Tall Wormwood. Bay Co., G. M. Bradford. Sandy fields. 

 Ionia Co.; Montcalm Co.; S. Haven, L. H. Bailey. Infrequent. C. & S. 



2208. A. gnaphaloides Nutt. Keweenaw Co., 0. A. Farwell. 



2209. A. Ludoviciana Nutt. Western Mugwort. Dry banks. Niles, J. T. Scoville. 

 Univ. Herb.; Keweenaw Co., O. A. Farwell. Rare. 



2210. A. Stellariana Bess. Port Austin. C. A. Davis; Keweenaw Co., 0. A. Far- 

 well. 



2211. A. vulgaris L. Common Mugwort. Waste places. Infrequent. 



