52 The Vegetation of the 



Coreopsis lanceolata L. prairie II. 4 W.Can.— 111. Tla.— La. 



Bidens frondosa L. waste places; bottom, VIII. 5 Atl.— Up.Mo. G.— Can. 



—Or. 

 Bidens connata Muhl. low banks V. 5 N.B.— All. (Ga.)— TJp.Mo. 

 Bidens chrysanthemoides Michx. swamps, banks VIII. 8 Atl.— Pacif.Gult 



Can. 

 Dysodia chrysanthemoides Lag. waste places, roadsides VI. SUp.Miss. — 



La. Up.Mo.— Mex. 

 Helenium auctumnale L. bottom X. 6 Atl.— ]Sr.Mex.— Ore. G.— Subarct. 

 Achillea millefolium L. prairies, open roads V. 3 Atl.— Pacif. G.— Arct. 

 Artemisia caudata Michx. prairie IV. 5 N.B.— Up.Mo. Sask.— Tex. 

 Artemisia ludoviciana Nutt. banks II. 2 Pacif. — 111. — Sask. 

 Artemisia biennis Willd. wastes places IV. 6 Pacif.— Tenn.— Mackenzie E. 

 Gnaphalium polycephalum Michx. dry prairie, wood openings VI. 5 Atl.— 



Mex. G.— Can. 

 •fGnaphalium purpureum L. sandy soil 1. 1 Atl. — Pacif. G. — Can. 

 Antennaria plantaginifolia Hook, open woods, hillsides VI. 5 Atl. — Pacif. 



G.-Huds. 

 -Brechtites hieracif olia Raf. waste places VI. 4 Atl.— Up.Mo. G. — Sask. 

 Cacalia suaveolens^L. bottom I. 3 Conn.— 111. All.— W.Pla. 

 Cacalia reniformis Muhl. woods II. 3 Pa.— N.Ca.— Up.Miss. 

 Cacalia atriplicifolia L. bdttom V. 5 W. Can.— 111.— Fla. 

 Cacalia tuberosa Nutt. prairie II. 3 W.Can. — Ala. Wise. 

 Senecio aureus L. wood, hillsides V. 5 N.P — Fla. — Tex.— Or. 



OynaresB. 



Cnicus altissimus Willd. copses, fields IV. 3 N.Y.— Fla.— Tex.— Wise. 

 Cnicus altissimus var discolor Gr. copses, roadsides V. 4. Can.— Ga. — 111. 

 Cnicus muticus Ph. bottom, springy places III. 3 N.F.— Fla.— La.— Sask. 

 Cnicus pumilus Torr. prairie V. 4 N.E.— U.Miss. 



Cichoriacess. 



Krigia amplexicaulis Nutt.(Cynthia virginica Don) open woods V. 3 N.Y.— 



Colorado. Ga. — Minnesota. 

 Hieracium scabrum Michx. open woods III. 3 N.E.Can. — Ga.— Up.Miss. 

 Hieracium longipilum Torr. prairies V. 3 Mich.— Ark.— W.Tex.— Up.Mo. 

 Prenanthes albaL. (Nabalus Hook) shady hillsides V. 4 N.F.— All.— U.Miss. 

 Prenanthes aspera Michx. dry prairie III. 3 Oh. — La.— Up. Miss. 

 Prenanthes crepidinea Michx. bottom, rich soil II. 3 W.N.Y.— 111.— Ky. 

 Prenanthes racemosa Michx. wet prairie III. 3 N.E.Can.— Up.Miss.— Sask. 



E.Mts. 

 Troximon cuspidatum Ph. prairie, hillsides II. 3 111. Wise— R.Mts. 

 Taraxacum officinale Weber open wood, yards V. 7 N.E.— E.Mts. Ore.— 



Arct. 

 Lactuca canadensis L. copses, roadsides V. 3 Atl.— N.Mex. G.-- Sask. 

 Lactuca integrifolia Big. open ground II. 3 N.E— Ga.— 111. 

 Lactuca hirsuta Muhl. wooded hillsides III. 4 N.E— Up.Miss.— Tex. 

 Lactuca floridana Gaertn. (Mulgedium DC.) copses, wooded hillsides V. 3 



Pa.— 111. Fla.— Tex. 

 Lactuca acuminata Gr. copses, wooded hillsides II. 2 N. Y.— Fla.— 111. 

 Lobeliaceae. In N. Am. 5 Gen. 29 Spec. 



Lobelia cardinalis* L. bottom IV. 6 Atl.— Up.Mo. G.— Can. 

 Lobelia syphilitica L. bottom VI. 4 N.E.— Atl.— La.— R.Mts. 



*A single hybrid of Lobelia cardinalis and syphilitica was found. 



