Genus 6i.] 



THISTLE FAMILY. 



419 



Long-headed or Prairie 



2. Ratibida columnaris (Sims) D. Don. 

 Cone-flower. (Fig. 3893.) 



Riidbeckia columnaris Sims, Eot. Mag. pi. 1601. 



1813. 

 Ralibida columnaris D. Don; Sweet, Brit. Fl. Gard. 



2: 361. 18.5S. 

 Lepachys columnaris T. & G. Fl. N. .\. 2: 313. 1842. 

 Lepachys columnaris var. putclierrima T. & G. loc. 



cit. 1842. 



Perennial, strigose-pube.scent and scabrous; 

 stem slender, usually branched, i°-2^° liigli- 

 Leaves thick, pinnately divided into linear or 

 linear-oblong, acute or obtuse, entire dentate or 

 cleft segments, the cauline short-petioled or ses- 

 sile, 2'-4' long, the basal ones sometimes oblong, 

 obtuse and undivided, slender-petioled; bracts of 

 the involucre short, linear lanceolate or subulate, 

 reflesed; rays 4-10, yellow, brown at the base, or 

 brown all over, 4"-i5" long, drooping; disk 

 gray, elongated-conic or cylindric, obtuse, at 

 length 3 or 4 times as long as thick; chaff of the 

 receptacle canescent at the apex; achenes scar- 

 ious-margined or narrowly winged on the inner 

 side; pappus of i or 2 subulate teeth usually with 

 several short intermediate scales. 



On dry prairies. Northwest Territory to Minnesota, Nebraska, Texas and ."Vrizona. 

 nessee. May-Augf. 



.\Iso in Ten- 



3. Ratibida Tagetes (James) 



Barnhart. Short-rayed Cone-flower. 



(Fig. 3894-) 



Rudbeckia Tagetes James in Long's E.xp. 2: 68. 



1S23. 

 Lepachys Tagetes A. Gray, Pac. R. R. Rep. 4: 103. 



1856. 

 Ralibida Tagetes Barnhart, Bull. Terr. Club, 24: 



100. 1897. 



Perennial, rough-canescent; stem i°-ij^° 

 high, usually much branched, leafy. Leaves 

 firm, pinnately divided into 3-7 narrowly linear, 

 mostly entire segments; peduncles terminal, yi'- 

 2' long; heads \' broad, or less; bracts of the 

 receptacle narrow, deflexed; rays few, mostly 

 shorter than the globose to short-oval disk ; style- 

 tips obtuse; achenes scarious-margined; pappus 

 of I or 2 subulate deciduous teeth, with no short 

 intermediate teeth. 



On dry plains and rocky hills, Kansas to Texas, 

 Chihuahua, New Mexico and Arizona. July-Sept. 



.-.-IT- ; 



' ^i 



62. BRAUNERIA Neck. Elem. i: 17. 1790. 

 [fc;cHiN.\CE.\ Moench, Meth. 591. 1794.] 



Perennial erect branched or simple herbs, with thick black roots, thick rough alternate or 

 opposite 3-5-nerved entire or dentate undivided leaves, and large long-peduncled heads of tu- 

 bular and radiate flowers, the rays purple, purplish or crimson, the disk green or purple, at 

 length ovoid or conic. Involucre depressed-hemispheric, its bracts lanceolate, spreading or 

 appressed, imbricated in 2-4 series. Receptacle conic, chaffy, the chaff carinate and cuspi- 

 date. Ray-flowers neutral, or with a rudimentary pistil. Disk-flowers perfect, the corolla 

 cylindric, 5-toothed. Achenes 4-sided, obpyramidal, thick. Pappus a short dentate crow-n. 

 [Named for Jacob Brauner, a German botanist of the iSth century.] 



Two known species, natives of eastern and central North America. 

 Leaves ovate or ovate-lanceolate, mostly dentate. i. B. purpurea. 



Leaves lanceolate or oblong-lanceolate, entire. 2. li. pallida. 



