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COMPOSIT-i:. 



in 1-2 series.— Branching herbs (natives of the old world), with the radical 

 leaves toothed or runcinate ; the heads axillary and nearly sessile, or termi- 

 nating the branches. Flowers bright blue, sometimes varying to white. 



1. C. Jntybus (Linn.) : lower leaves runcinate, hispid-scabrous on the cari- 



2. p. 496; Hook.! ji. Bor.-Am. \. p. 296; Darlingt.ji. CesU p. 440. 



Old fields and road-sides, naturalized in Canada! and the Northern and 

 Middle States ! Aug.-Sept.— U Flowers showy.— Wild Succory. 



Subtribe 3. Scorzonereje, Zess.— Receptacle not chaffy. Pappus of 

 chaffy or stout bristles, which are dilated at the base, or else plumose. 



184. STEPHANOMERIA. Nutt. in trans. Amer. phil. sac. I. c. 7. p. 427. 



Heads 3-6-flowered. Involucre cylindrical, composed of 3-5 oblong-linear 

 one-nerved equal scales, and of a few short calyculate scales at the base. 

 Receptacle scrobiculate, naked. Achenia oblong, strongly 5-angled or 5- 



Pappus (white) of 15-24 plumose filiform bristles (which are gradually but 

 slightly stouter towards the base), in a single series.— Diffiise and much 



on both sides of the Rocky Mountains), with the aspect of Chondrilla ; the 

 lower leaves linear and often runcinate ; those of the neariy naked branches 



These plants have exactly the habit of Lygodesmia ; from which they chiefly differ 

 in their plumose pappus. 



§ 1. Perennial: roots thick and often tortuous: heads 5-6'Mcered. 



late, e'ntire : hei^s o-kov!e)ed^—FTenanth^^ ^in^Ann- lye 



New York, 2. p. 210, not of Spreng. Lygodesmia minor, Hook. ! jl. Bor.- 

 Am. I. p. 205, t. 103, A. 



Plains and hills of the Oregon, near the Wallawallah, &c. Douglas! 

 NuttaLl ! Plains of the Platte, I>r. James /— July-Aug.— A foot or more m 

 height. Achenia strongly 5-suIcate. sometimes very obscurely wrinkled or 

 rugose, probably smooth and even when mature. Pappus of 16-24 beauti- 

 fully plumose bristles. 



runcinate, more or"ks8 pu"bescent when young; 

 iches linear or subulate, the lower often 1-2-toothed ^, 

 renanthes runcinatum, James, in Long's exped. P- - 

 . icifiora, Torr.! in ann. lyc. New York, 2. p. 210. S. runcinata & 

 S. heterophylla, Nutt. ! L c. 



Plains of the Platte at the base of the Rocky Mountains, Dr. Jame^- 

 Lieut. Fremont! Also on Big Sandy Creek, one of the sources of the Colo- 

 rado of the West, NvitaU ! July-Aug.-Plant 4-8 inches high. 



