OKDKK 70. COMPOSITE. 166 



ivs. long (4-60, lanceolate, acuminate ; PC. obtuse ; fr. pubes. in lines. Low grounds 

 2 4f. Stems purplish. Rays about 12, 3 4" long. Handsome 

 ft. amysrdalinux. St. roughish above ; Ivs. ovate-lanceolate ; sc. rather loose. 2-31 



3 D. cornlfollus Less. Rough above, some hairy in lines ; hds. few, corym.-pauicu 



late ; Ivs. elliptical, thin, long-pointed both ways, entire ; scales shorter than the disk 

 obtuse ; cypsela glabrous. Woods. Can. to Car. 1 2f. Rays about 10, white. 



4 D. obovatus (Ell.) Cinereous-pubescent: heads corymbed : Ivs. obovate-oblon;> 



acute; sc. lin. -subulate, rusty yeliu\v ; fr. villous; rays white. Damp shades, S. 2 :!) 



20. ERIGERON, L. FLEA BANE. WHITE-WEED. Heads subhemi 

 spherical. Ray-flowers 2 (40 200), narrow, linear. Fis. of the disk 5, GO 

 Recep. flat or convex, naked, invol. scales nearly in one row and equal 

 Pap. generally simple. Herbs with alternate Ivs., rays cyanic, disk yellow 



Rays minute, shorter than the cylindrical involucre, white. Pappus simple 1, 2, 10 



J Rays long, showy, 30 40. Pappus simple. Lvs. all radical. lids. corymbons..No. S 



Raye long, showy. 50200. a Pappus simple. Leaves clasping. Corymbous. . .Nos. 4 ft 



a Pappus double. Leaves sessile. Corymbous Nos. 79 



1 E. Canadeiise L. Erect; invol. oblong ; rays 40 50, crowded, minute ; pap. sim- 



ple ; stem hairy, paniculate ; leaves lanceolate. (T) A common weed. 6' 6f. Jl. Oct. 



2 E. divaricatum MX. Decumbent and diffusely branched, hirsute ; Ivs. linear anc 



subulate; hds. very small, loosely Corymbous. Dry soil, W. and S-W. (/ 2f. Purp 



3 E. imdlcaule MX. Glabrous ; Ivs. obovate or spatulate, radical, rosulate, entire 



hds. few ; rays narrow, white. U Pine-barrens. S. Scape bracted, slender. 18 7 . Jn. Ji. 



4 E. bellldllolluni Muhl. Robins' 1 Plantain, Hirsute; radical Ivs. obovate, obtuse, 



subserrate ; stem Ivs. remote, mostly entire, clasping; hds. 37; rays 50 60, purple, 

 linear-spatulate. is. Dry soils : common. 1 2f. May, June. Handsome. 



5 E. Pliiladelphicum L. Pubescent or hirsute; Ivs. thin, lower spatulate, ere- 



nate-dentatf. upper clasping, sometimes cordate-auriculate ; heads few, on long, slen- 

 der ped. ; rays 150-200, filiform, reddish, u Damp: com. 2f. St. Ivs. various. Jn.-Aug. 



6 E. quercifoliuni Lam. Pubescent : root Ivs. oblong-obovate, lyrate pinnatifid. or 



deeply sinuate-toothed, the cauline sharply serrate, clasping ; heads GO, small, with 

 innumerable filiform flesh-colored rays. V Low grounds. S. May. 



7 E. a 11 1111 ii in Pers. Common Fleabane. White-weed. Hirsute, branching; leaves 



coarsely serrate, ovate to lanceolate, the lower on winged stalks ; rays very numerous, 

 narrow, white. @ Fields : common. 2 4f. June Aug. 



8 E. strfgosum L. Rough, with short, appressed hairs, or nearly smooth ; Ivs. lan- 



ceolate, tapering to each end, entire, or with a few large teeth in the middle, lower ones 

 3-veined and petiolate ; pan. corymbous, white. @ Grass lands : com. 2f. Jn. Oct. 



9 E. glabcllum Nntt. Lvs. smooth, entiie, spatulate, long-tapering at base, uppej 



lanceolate and lance-linear, sessile, acuminate ; heads 46, pubescent ; rays very nn- 

 ineious, pale blue. Wis. to Dak. 12' IS'. July, Aug. 



1 E. acre L. Erect, If; Ivs. entire, oblong to lanceolate ; heads few or many, hemi 

 spherical, with bluish-purple rays as long as the pappus. Lake Superior (Porter;. 



21. CALLISTEPHUS, Cass. CHINA ASTEH. Ray flowers 2 , GO, disk- 

 flowers fr . Involucre hemispherical. Rccep. subconvex. Pappus double, 

 each in - series, outer series short, chatty-setaceous, with the setae united 

 intr a crown ; inner series of long, filiform, scabrous, deciduous bristles. 



C. CniNENSis. Stem hispid; branches divergent. 1-flwd. ; leaves ovate, coarsely dentate, 

 petiolate, cauline ones sessile, cuneate at base. China ? Cultivation has produced 

 innumerable varieties, double and semi-double, of every coloi Aue.. Supt. (T) 



22 BELLIS, L. GARDEN DAISY. P^vs GO. 2. Disk ? Tnv-obucl 



