No. 50.] 
147 
BiDENs, L. Bur Marigold. 
connata, L. Swamps and low grounds . September . 
frondosa, L. Along fences, &;c . August-September. 
CQxxmdi, Willd. B. petiolata, iVw^^.? Swamps. August-Sept, 
chrysanthemoides, Michx. Low grounds . August-September . 
Beckii, Torr. Lakes and ponds near Schenectady, Dr. Beck. 
Western part of New-York, Dr. Aikin and Dr. 
Gray . 
bipinnata, L. Spanish Needles . Fields and rocky hills. August- 
September . 
Helenium, L. 
autumnale, L. Swamps. August-September. 
Maruta, Cass. 
§ cotula, Cass. Anthemis cotula, L. May-iveed, Stinking Cha- 
momile. Road sides, &;c. June-September. 
Achillea, L. Yarrow, Milfoil. 
§ millefolium, X. Fields, pastures, &c. June- August. 
Leucanthemum, Tourn . 
§ vulgare, Lam. Chrysanthemum leucanthemum, L . Ox-eye 
Daisy. Pastures, &:c. June-August. 
Artemisia, L. Wormwood. 
§ vulgaris, L. Mugwort. Fields and road sides . September, 
canadensis, L. Wild Wormwood,. Sandy shores of I^ake Erie. 
July- August. Dr. Beck. 
caudata, Michx. Sandy seacoast of Long Island . September . 
Tanacet^, L. Tansey . 
§ vulgare, L. Common Tansey . Road sides, &c . July- Aug . 
Gnaphalium, X,, D. Don. Cudioeed. 
decurrens, Ives. Fields and borders of woods. August, 
polycephalum, Michx. Life Everlasting, Balsam . Old fields, 
(fee . August-September . 
uliginosum, X. Low grounds. July- August, 
purpureum, L. Dry open woods . July . G. sylvaticum, Pursh. 
(not of Linn.), G. americanum, Pursh. (not of 
Mill), and G. pennsylvanicum, Willd. seem not 
to be distinct from this species . 
