472 COMPOSIT.E. Cichorium. 



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. Intyhus (Linn.) : lower leaves runcinate, hispid-scabrous on the cari- 

 nate midrib; the cauline small, oblong or lanceolate, partly clasping, sinuate- 

 toothed or nearly entire; those of the branches inconspicuous; heads mostly 

 2-3 together, sessile. — Engl. hot. t. 538 ; Schkuhr, handb. t. 226 ; Pursh, fl. 

 2. p. 496; Hook.! fl. Bor.-Am. \. p. 296; Darlingt. fl. Cest. p. 440. 



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

 Middle States! Aug.-Sept. — 21 Flowers showy. — Wild Succory. 



Subtribe 3. Scorzonere^, Less. — 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. soc. 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- 

 grooved, glabrous, not rostrate, scarcely if at all attenuated at either end. 

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

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

 branched rather rigid and glaucescent herbs (natives of the sterile plains, &c. 

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

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

 minute and bract-like, linear-subulate, entire. Heads small, solitary, termi- 

 nating the branchlets. Flowers rose-color. 



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-floicered. 



1. S. minor {Natt.l I.e.): branches somewhat striate ; leaves linear-subu- 

 late, entire: heads 5-flowered. — Prenanthes ? tenuifolia, Torr. ! in Ann. lye. 

 NewYork, 2. p. 210, not of Spreng. Lygodesmia minor. Hook. ! fl. Bor.- 

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



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

 Nuttall! Plains of the Platte, !>/-. James! — July-Aug. — A foot or more in 

 height. Achenia strongly 5-sulcate, sometimes very obscurely wrinkled or 

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

 rully plumose bristles. 



2. S. runcinata (Nutt. ! 1. c.) : branches flexuous, somewhat striate ; radical 

 and lower cauline leaves runcinate, more or less pubescent when young; 

 those of the fertile branches linear or subulate, the lower often 1-2-toothed ; 

 heads 5-6-flowered. — Prenanthes runcinatum, James, in Long's exped. P.? 

 pauciflora, Torr.! in ann. lye. New York, 2. ]}. 210. S. runcinata & 

 S. heterophylla, Nutt. ! I. c. 



Plains of the Platte at the base of the Rocky Mountains, Dr. James ! 

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

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



