428 Oiu>es 70.-— COMPOSITE. 



lucre nearly in one row and equal ; pappus generally simple. — Herbs 

 \Sjith alternate lvs. Rays cyanic. Disk yellow. 



§ T^nys minute, shorter than the cylindrical involucre. Pappus simple Nos. 1, 2 



§ Kays long, showy, 80 to 4i>. Pappus simple. Leaves all radical No. S 



§ Hays long, showy, 5 J to 200. — Pappus simple. Leaves clasping Nos. 4 — C 



— Pappus double. Leaves sessile, &c Nos. 7 — 9 



1 E. Canadense L. Invol. oblong ; rays numerous (-40 — 30), crowded, minute | 

 pappus simple ; st. hairy, paniculate ; Lvs. lanceolate, lower ones subserrate. — A 

 very common annual plant of no beauty, growing by roadsides and in fields, 

 throughout N. Am. Stem h — 9fl high, branching, hairy and furrowed. Leave* 

 very narrow, with rough edges. Flowers white, very numerous, small, of mean 

 appearance, irregularly racemous upon the branches, and constituting a large, ob- 

 long panicle. The plant varies greatly in size, according to the soil. — A starved 

 form is B. pusillum Nutt. 



2 E. divaricatum Mx. Decumbent and diffusely branched, hirsute ; lvs. linear 

 and subulate ; hds. very small, loosely corymbous ; rays minute. — Dry soil, W. 

 States S. to La. Plant of a greyish or bluish aspect, 3 — 6' high, but at length 

 spreading 1 — 2£ Leaves 4 — 12" by -} — 1". Rays purplish. June — Aug. 



3 E. rradicaule Mx. Glabrous ; lvs. obovato or spatulate, radical, rosulate, en- 

 tire ; one or two sessile, bract-like on the simple stein or soapo ; hds. few, corymb- 

 ous; invol. hemispherical; rays narrow, 30 or more, conspicuous. — Pine barrens} 

 Va. to Fla. and La. Lvs. about 2' long. Scapo 18' high, very slender. Rays 

 white. May, Jn. 



4 E. bellidifolium Muhlenb. Robins' Plantain. Hirsute ; radical lvs. obo- 

 vate, obtuse, subserrate ; st. lvs. remote, mostly entire, lance-oblong, acute, clasping ; 

 hds. 3 — 1, in a close, terminal corymb; rays 50 to G0 T nearly twice longer than the 

 involucre, Imear-spatulate. — Dry lields and thickets, U. S. and Can. Stem erect, 

 6imple, sometimes stoloniferous, 1 — 2f high. Leaves 2 — 3' by G — 0", mostly 

 broadest above tho middle. Rays bluish (rarely reddish )-purple. This is our ear- 

 liest species, flowering in May and June. Resembles tho following. (E. pulchel- 

 lum Mx.) 



5 E. Philadelphictini L. Pubescent or hirsute; lvs. thin, lower s]jatulate t cre- 

 nate-dentate, upper oblong-oblanceolate, narrowed to the clasping (sometimes cor- 

 date-auriculate) base, subserrate; hds. few, ou long, slender ped. ; rays 150 to 

 200, filiform, moro than twice longer than the invol. — Woods and pasture* 

 throughout N. Am. St. slender, 1 to 3f high. Lvs. 2 to 4' by 6 to !>', lower 

 much attenuated at base, upper acute. Rays reddish-purple or flesh-colored, 

 nearly as slender as hairs. Jn. — Aug. 



(i. kicardi. Cauline lvs. cordate- ovate. Meriden, N. II. (Ricard). 

 y. St. stout, with coarsely serrate lvs., approaching the next. 



6 E. quercifoliuru Lam. Pubescent; rl. lvs. obhny-obova'e, lyrale-pinnatijicl, or 

 deeply sinuate-toothed, tho cauline sharply serrate, clasping; upper entire; hde. 

 small, numerous, corymbous, with innumerable filiform rays, twice longer than, 

 the invol. — S. Car. to Fla. and La. Differs from the preceding in its smaller and 

 more numerous hds. as well a3 its lvs. Rays pale purple. Mar. Jn. 



7 E. annuum Tors. Common Fleabane. "White-weed. Hirsute, with scat- 

 tered hairs, branching; lvs. coarsely serrate, the lowest ovate, contracted at base 

 into a winged petiole, stem leaves ovate-lanceolate, sessile, acute, the highest lan- 

 ceolate ; rays very numerous and narrow ; pappus double. — A common weed, in 

 fields and waste grounds, Can. 1o Penn. and Ky. Stem thick, 2 — 4f high, striate, 

 terminating in a large, diffuse, corymbous panicle of largo heads. Rays whito or 

 purplish, 100 or more, short. Jn. — Aug. (E. heterophyllum Muhl.) 



8 E. strigosum L. Plant, rough, with short, appressed hairs, or nearly smooth; 

 lvs. lanceolate, tapering to each end, entire, or with a few large teeth in the middle, 

 lower ones 3-veined an:l petiolate ; pan. corymbous ; pappos double. — A rough 

 weed, in grassy fields, Can. and U. S. St. about 2f high, slender, furrowed, with 

 close, short, stiff hairs, and bearing a largo, loose corymb. Lvs. also with close- 

 pressed bristles, sessile. Rays very narrow, white. Jn. — Oct. 



ji. St. simple, smooth; lvs. entire, pubescent; fls. corymbed; rays 100 to 150. 

 (E. integerrifolium Bw.) 



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