52 The Vegetation of the 



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



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



—Or. 

 Bidens connata Muhl. low banks V. 5 N.E.— All. (Ga.)— Up.Mo. 

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



Can. 

 Dysodia chrysanthemoides Lag. waste places, roadsides VI. 8 Up.Miss. — 



La. Up.Mo.— Mex. 

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

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

 Artemisia caudata Michx. prairie IV. 5 iST. E.— Up.Mo. Sask.— Tex. 

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

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

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



Mex. G.— Can. 

 jGnaphalium purpureum L. sandy soil 1. 1 Atl. — Pacif. G. — Can. 

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



G.— Huds. 

 Erechtites hieracifolia Raf. waste places VI. 4 Atl.— Up.Mo. G. — Sask. 

 Cacalia suaveolensT.. bottom I. 3 Conn.— 111. All.— W .Fla. 

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

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

 Cacalia tuberosa Nutt. prairie 11, 3 W.Can.— Ala. Wise. 

 Senecio aureus L. wood, hillsides V. 5 N.F — 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. 



OichoriacesB. 



Krigia amplexicaulis Nutt.CCynthia 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. (Xabalus Hook) shady hillsides V. 4 N.F.— All.— U.Miss. 

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

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

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



R.Mts. 

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

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



LobeliEicesd. 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. 



