202 COMI'OSITK FAMILY. 



C. Drummondii, of Texas, is low ;unl -prcading. nither hairy, with leaves 

 of 3- 7 oval leaflet*, or sonic of them simple, heads on long peduncles, and very 

 oroad ray.* golden yellow with small dark spot at !>;' 



* * i 1 >i.-<k-jl<iir<-rs yel/itiu : rays ye/Inn- n-ii/i a darker and purplish-streaked spot 



near the Ixise : akenes winyed and '2-toothed. 



C. COronata, of Texas, is low, with slender-petioled leaves oblong or spatn- 

 late, or some of them 3 - 5-parted, and very long peduncle; rays broad and 

 handsome. 



* * * 11 Disk-floive.rx 'i ml rays (!' long) entirely yellow ; akenes orbicular, much 

 incurred and broadly iriin/cd when ripe, crowned trith 2 little teeth or scales. 



C. lanceolata. Wild W. & S.. and e.nlt. iii gardens; l-2 high, smooth 

 or sometimes d.twnv, in tufts, with lanceolate or oblanccolate entire leaves 

 mostly crowded at 'the base, and long slender peduncles: flowers in early 

 summer. 



C. aurictllata. Wild W. & S., and in some gardens ; taller, sometimes 

 with runners or suckers at base, leafy to near the top ; upper leaves oblong, 

 lower roundish and sometimes aurieled at base or with 3-5 lobes or leaflets. 



2. Rays entire or nearly so, oblonrj or lanceolate: <ik>ih~ <,',!,(/, iritli a very 

 narrow icii/r/ or border, not incurved, and obscurely if at nil 2-toothed at the 

 apex : scales of outer involucre narrow and entire : heads rather small, t/te 

 flowers all yellow. 2/ 



* Low, l-3 hinh, leafy to the top: leaves really opposite and sissile, but <////</,</ 



into 3 lt fie/*, tints seeming to be 6 in a whorl. Wild r/uejly in S. States, 

 all but tin- first are. cult in gardens. 



C. senifolia, has seemingly C lance-ovate and entire leaflets in a whorl, 

 ''. e. two, but each 3-divided) smooth or downy. 



C. verticillata, has the pair cut into once or twice pinnate almost thread- 

 shaped divisions, smooth. 



C. delphinif61ia, very like the last, but with fewer lance-linear divisions. 



* * Tall, leaf i/ to the top, iritli eritli nlli/ opposite petioled lean-s. 



C. tripteriS. Hich ground W. & S., with simple stems 4 -9 high, leave* 

 of3-5 lanceolate entire leaflets, cory tubed heads, very short outer involucre, 

 and blunt ravs. 



3. liin/x in-al or lib/nut/, fjolden yel/oiv, sliqht/y imtr/inl : uktiits irintj/,**, nut in- 

 curr,d, bearing 2 uii-us or teeth for a pappus : <>ut, r inr<> m-re cuii.tpicuoia 

 ami n-si'iiib/iiH/ liai-is: branch! inj plant* <f n-it I/rounds, iritli thin lmi-<s 

 7nnst/y of :>,-' pinnate toothed nr rut rein// hamlets; resembling tin n,.rt 

 yenits, but t/ie aims not downwardly !>nr!i,d. (\) 



C. trichospei'llia. Swamps mostly near the roa-t, l-2 high, with 3-7 

 lanceolate or linear cut-toothed leaflet* or divi>ion->, numerous heads, and uar- 

 row-obloni;- or liip-ar wedge-shaped ni:iririule>s akene-s with '1 stout teeth. 



C. aiirea, only S., has upper leaves often >ini|ile, lower nearly as in the fore- 

 going, and >liorter wedge obuvate akenes wilh 2 or 4 >liort ehatf-like teelli. 



C. ariStbSft, from Illinois S., ha* more eompiiiind leave> with olilong >r 

 lanceolate ol'ti'ii pinnatifid leaflets, and briad-obo\ ate very flat akenes slightly 

 margined and bri.Mly eiliate, the pappus of -J long and slender auus, or MMIIO- 

 times 3 or 4, or in one variety none at all. 



53. BIDENS, BUR-MARIGOLD, 15K(i(;AH-TICKS. (Latin for two- 

 tonthed, from the u>ua'ly 2 awns of the papjuis.) Our sjieeies i or ; 

 ll. Mimmer and autumn. The akenes adhering to the dress or to the fleece 

 of animals bv their barbed awns. 



1. Aki'iits broad tinil jlnl, irit/t brit/'i/ ri/intr iniiri/ins. 

 * Cnrxe mill /</// lionnli/ II-IK!*, fonn/ioii/i/ iritlmit anii niya. 



B. frondbsa, COMMON I5i.i.i; \K-TK 'Ks. Coarse weed in low or manured 

 grounds, 2 - 6 high, branched, with pinnate leaves of 3 - 5 broad lanceolate 



