67 
CHRYSANTHEMUM, Tourn. 
573. C. leuca nthemum , L. White-weed. Ox-eye or White-Daisy. Mar- 
guerite. 
Leucanthemum vulgar e, Lam. 
Railroad banks and dry fields; infrequent. September. 
Along the Wisconsin division of the C. & N. W. R. R. to the limits 
of the county. From South Chicago southeast, along the L. S. & 
M. S. R. R. ; frequent. Becoming more common each season, in 
spite of those who collect it for its beauty and for sale. 
A common and noxious weed in the East. 
574. C. parthenium, Pers. Feverfew. 
Leucanthemum parthenium , Godron. 
Matricaria parthenium , L. 
Sparingly escaped from cultivation at Evanston. (B. P.) 
TANACETUM, L. 
575. T. vulgake, L. Common Tansy. 
Escaped from cultivation to roadsides ; common only locally and in 
only a few localities. July — August. 
Glencoe. Miller’s, Ind. Maywood. Banks of Lake Calumet, Bastin. 
ARTEMESIA, L. Wormwood. 
576. A. caudata, Michx. 
Sandy soil of the lake shore; rare. August. (B.) 
Evanston. Lake Calumet. Short distance north of Cheltenham 
Beach, 1883-’ 85-87. Englewood, Budge. 
This species may be found more frequently. 
577. A. canadensis, Michx. Sea Wormwood. 
Along the lake shore, both north and south; frequent. August. (P.) 
A pubescent form is not infrequent. 
-f- 578. A. ludoviciana, Nutt. Western Mugwort. 
The form with undivided leaves — var. gnaphalodes, of Gray’s Manual, 
5th Ed. — has been found in sandy soil along the lake shore from 
Jackson Park to the county line, and south in Indiana to Miller’s. 
From this locality but a half-dozen specimens have come to our 
knowledge, collected during the years 1884-’86. (B.) 
579. A. biennis, Willd. Biennial Wormwood. 
Dry open grounds; common. July — August. 
SENECIO, Tourn. 
580. S. aureus, L. Golden Ragwort. Squaw-weed. Groundsel. 
Shaded swamps and wet places; common or abundant. May — July. 
