84 TAVELFTH ANNUAL REPORT. 



G. piiiKatiftcla , Ton-,* Gaillardia. 



Red river prairie, Dawgon, West (mostly southwest). [Perhaps more correctly 

 referable to the preceding species.] 



HELENIUM, L. Sneeze- weed. 



H. autiimnale, L. Sneeze- weed. 



Common through the south half of the state and in the Red riyer valley ; extending 

 northeastward at least to the upper Mississippi river, Garrison. 



ANTHEMIS, L. Chamomile. 



A, Cotula, L. {Maruta Cotula, DC.) May-weed. Dog Fennel. 



A common, often abundant, weed in the southern two-thirds of the state ; less fre- 

 quent in clearings of the foiest farther north ; also less common westward, and scarce 

 from Ada northward in the Red river valley. 



A.nobilis, L. Garden Chamomile. 

 Adventlve, Beaver Bay, Juni. 



ACHILLEA, Vaill. Yarrow. 



A. Millefoliiiiii, L. Common Yarrow or Milfoil. 



Common throughout the state. The following notes describe this species on the 

 north shore of lake Superior : "Abundant all along the shore, forming a fringe of white 

 just on the line between the forest trees and the waves ; was not found in other situa- 

 tions." Jimi.— "The rose-colored variety occurs sparingly, showing all shades.of color 

 from white to a quite deep pink." Roberts. 



CHRYSAN'THEMUM, Tourn. Chrysanthemum. 



C. Leucanthemum, L. {Leucanthemum vulgare, Lam.) Ox-eye Daisy. White- 

 weed. 

 Lake City, Miss Manning; Stillwater, Miss Field; Mankato, Prof. Bechdolt; Min- 

 neapolis (frequent), Roberts; Saint Cloud, Campbell; upper Mississippi river, Garrison. 

 Rare or local ; inclined to spread ; an abundant and pernicious weed in states farther 

 east. 



TANACETUM, Tourn. Tansy. 



T. vulgare, L. Common Tansy. 



Adventive : lake Pepin; Goodhue county ; Minneapolis ; Blue Earth county ; Em- 

 met county, Iowa. 



T. Huroiiense, Nutt. Lake Huron Tansy. 



Upper Mississippi river, Garrison. Infrequent. North. 



ARTEMISIA, Tourn. Wormwood. 



A. glaiica, Pall.t Wormwood. 



Saskatchewan and Minnesota, Drummond, Nicollet, Kennicott. {Gray's Synoptical 

 Flora of N. A.) 



*Gaillabdia pinnatifida, Torr. Perennial, canescent ; stems 8 to 12 inches high, 

 branching ; leaves sessile, pinnatifld, the rachis and remote lobes linear; heads rather 

 small; involucre in about two series, nearly equal to the disk ; rays deeply 3-cleft ; chaff 

 of the pappus lanceolate ; fimbrillaeof the receptacle aristaeform, slender, sparse, longer 

 than the achenia. Porter and Coulter's Flora of Colorado.~A showy flower ; heads 1 to 

 2 inches broad ; rays yellow, or purple toward the base ; disk-flowers purplish : leave* 

 1 to 3 inches long. Bot. Rep. of King's Expl. of the Fortieth Parallel. 



t See description of Artemisia glauca. Pall., on next page. 



