COM1 SITE FAMILY, i 



scales of the involucre in a single row, lanceolate-subulate ; achenia mostly 

 broadr _ awns of the pappus slender; flowers whit: ; ray- none. — Rich 



soil, in the lower Georgia and South Carolina, and westward, rare. 



Sept. — Stem 4 C - S c high. Leaves 5' - S' long. 



3. A. helianthoides, Xutt. Stem hirsute, strongly winged ; leaves alter- 

 nate, ovate-lanceolate, sessile, rough-hairy above, downy and hoary beneath ; 



: w, corymbose : stales of the involucre in 2-3 rows, broadly lanceolate, 

 appre--ed ; rays 8-14, yellow: achenia slightly winged; awns bristle-like. — 

 Near Louisville, Georgia, and westward. July. — Stem2 c -3 C high. Leaves 

 3'lo:_ _ 



4. A. midicaulis, Nott Hirsute : stem wingless, somewhat naked and 

 corymbose above ; lea\ _---.. barely acute, the uppermost 

 small and mo-tly alternate ; heads corymbose ; scales of the involucre short, in 

 2-3 rows: ray- 7-12. yellow : achenia obovate-oblong, most : awns 

 short. (Helianthus ? aristatus, £*//.) — Dry sandy woods, Georgia, Alabama, 

 and Florida. Aug. and Sept. — Stem 2° high. Leaves 2' -3' It: _ 



* * Stems low, simple : pappus oftsoleie : rays none. 



5. A. pauciflora, Nutt. Stem wingless, simple, smooth below, naked and 

 rough above : leaves opposite or alternate, lanceolate or elliptical. - 



-trongly reticulate, rough with short rigid hairs ; heads solitary or 2-3 

 .-. terminal : scales of the involucre in 2 rows, lanceolate, apj : 

 flowers orange-yellow ; the marginal ones abortive : achenia oblong-obovate, 

 narrowly winged, with a cup-shaped di-k ; pappus wanting. — Low pine barrens 

 near the oast, West Florida. June and July. — Stem 1°- 2° high. Leaves 2' 

 long. Involucre, chaff, and achenia dark brown. 



50. COREOPSIS, L. Tickseed. 

 Is many-flowered ; the ray-flowers commonly 8. neutral, rarely wanting. 

 Involucre double ; each row of about 8 scales ; the outer ones narrow and 

 the inner membranaceous and oppressed. Receptacle flat, chaffy. 

 Chaff membranaceous, mostly deciduous with the achenia. Achenia compressed, 

 often winged, no: narrowed nor beaked at the apex, awnless, or with a pappus 

 of two upwardly hispid or serrulate awns or scales. — Herbs. Leaves entire or 

 pinnately divided. H ose. Di?k dark purple or yellow. 



Rays yellow, rarely rose-color. 



* Rays vone. 

 1 C. discoidea, Ton*. & Gray. Smooth: stem diffusely- branched : leaves 

 vith ovate-lanceolate coarsely serrate divisions : the up- 

 permost often ample : head- small, on short peduncle- : exterior involucre folia- 

 ceou-, longer than the heads : achenia narrowly wedge-shaped, hairy.— Swamps, 

 North Carolina, and northward. July - Sept. — Stem 1° - 2 C high. 



* * I or emarginate at the apex, yellow. 



■*- Leaves petioled : aclienia narrowly wedge-shaped, 2-foot bed or owned: scales of the 

 involucre equal, t/te outer ones separate. 

 2. C. aurea, Ait. Stem smooth, much branched ; leaves smooth or slight- 

 ly pubescent, 5 - 7-parted ; the divisions oblong or lanceolate, serrate, toothed or 

 20* 



