Genus 66.] 



THISTLE FAMILY. 



435 



ii. Coreopsis auriculata L. Running 

 or L,obed Tickseed. (Fig. 3935-) 



Coreopsis auriculata L- Sp. PI. 908. 1753. 



Perennial; stoloniferous; stems weak, very 

 slender, decumbent or ascending, 6 / -i5 / long, 

 little branched, or simple, pubescent or hirsute, 

 at least below. Leaves thin, entire or pinnately 

 3-5-lobed or 3-5-divided, the terminal segment 

 entire and much larger than the lateral ones, 

 the lower and basal more or less pubescent, 

 broadly oblong or nearly orbicular, with slender 

 pubescent petioles; stem leaves few, petioled or 

 sessile, mostly obtuse; heads i'-i^' broad, 

 slender-peduncled; outer bracts of the involucre 

 oblong, narrower than the mostly ovate and 

 acute inner ones; rays 6-10, cuneate, about 4- 

 toothed, yellow; achenesoval, narrowly winged, 

 the wings involute and thick. 



In woods, Virginia to Kentucky, south to Florida 

 and Louisiana. May-Aug. 



12. Coreopsis grandiflora Hogg. 

 Large-flowered Tickseed. (Fig. 3936.) 



Coreopsis grandiflora Hogg; 

 Gam. 2: pi. 175. 1825-27. 



Sweet, Brit. Fl; 



Perennial (or sometimes annual?); stem gla- 

 brous, usually branched above, i-3 high. 

 Leaves, or most of them, 1-2-pinnately parted, 

 or the lower entire and slender-petioled; seg- 

 ments of the lower stem leaves oblong, obtuse, 

 the terminal one larger than the lateral; seg- 

 ments of most of the stem leaves linear or even 

 filiform; petioles ciliate; heads commonly sev- 

 eral, i / -2 / broad, long-peduncled; outer bracts 

 of the involucre lanceolate, narrower and 

 mostly shorter than the oval or ovate- lanceo- 

 late inner ones; rays 6-10, yellow, lobed; 

 achenes oblong, broadly winged when mature, 

 the projections on the inner face usually large; 

 pappus of 2 short scales. 



In moist soil, Missouri to Texas, east to Georgia. 

 May-Aug. 



13. Coreopsis tripteris L,. Tall 

 Tickseed. (Fig. 3937.) 



Coreopsis tripteris L. Sp. PI. 908. 1753. 



Perennial; stem glabrous, much branched above, 

 4-8 high. Leaves petioled, glabrous, or very 

 nearly so, firm, the lower all divided into lanceo- 

 late entire acute rough-margined segments, which 

 are 2 / -5 / long, % / -i / wide and pinnately veined; 

 uppermost leaves lanceolate, entire; heads nu- 

 merous, slender-peduncled, l / -l^ / broad; outer 

 bracts of the involucre linear, obtusish, much 

 narrower than the ovate-oval or ovate-lanceolate, 

 acute inner ones; rays 6-10, yellow, obtuse, entire; 

 achenes oblong to obovate, narrowly winged, 

 emarginate; pappus none. 



In moist woods and thickets, Pennsylvania to Wis- 

 consin, south to Virginia, Florida and Louisiana. 

 July-Oct. 



