SYNGENESIA— POLYG.-SUPERF. Erigeron. 421 



396. ERIGERON. Flea-bane. 



Linn. Gen. 422. Juss 1 80. FL Br. 8/6. Lam. t.6S\. Gcertn. 1. 1 70. 

 Conyzella. Dill Gen. 142. t. 8. 

 Conyzoidcs. Ibid. 



Nat. Ord. Comjwsit.ce, y, discoidece. Linn. 49. Corymhiferce^ 

 sect. 2. Juss. 55. 7 following genera the same. 



Common Cat. imbricated, ovate-oblong ; scales linear, erect ; 

 the innermost longest, and all nearly equal. Cor. com- 

 pound, radiated ; Jiorets of the disk numerous, perfect, 

 funnel-shaped, regular, their limb in 5, sometimes said 

 to be but 4, equal segments ; those of the radius imme- 

 rous, tubular at the base, the limb liguiate, tapering, 

 nearly erect, either entire or slightly toothed. Filam. in 

 the florets of the disk only, capillary, very short. Anth, 

 in a cylindrical tube, simple. Germ, in all the florets, 

 fertile, small, obovate, angular. Style thread-shaped. 

 Stigmas 2, oblong, a little prominent, slightly spreading. 

 Seed-vessel none but the converging calyx. Seed small, 

 obovate. Down sessile, simple, rough, as long as the 

 florets. Recept. flat, naked, slightly cellular. 



Herbaceous, either annual or perennial, natives of Europe, 

 North America, or Southern Africa. Stem erect. Leaves 

 simple, either entire or toothed, roughish or down}-. FL 

 panicled or corymbose, rarely solitary, with very narrow, 

 whitish or purplish, rays, and a yellow disk. The ge- 

 neric name, retaining its Greek termination, ought to be 

 of the masculine gender, as well as Tragojwgon, and I 

 therefore, at the suggestion of my friend the Rev. Mr. 

 Holme, venture to correct this error in the specific names. 



* 1 . E. canadensis. Canada Flea-bane. 



Stem hairy, panicled, many-flowered. Leaves lanceolate ; 

 lower ones toothed. 



E. canadense. Linn. Sp. PI. 1210. mild. v. 3. ]9:)4. FL Br. 876. 



KngL But. V. 29. t. 20 1 9. Dicks. U. Sicc.fasc. 10.16. FL Dan . 



t. 1274. 

 E. n. 84. HaU. Hist. v. 1.3."i. 

 Conyza canadensis annua acris alba. linaii.T foliis. Raii Syn. \7o. 



Boer. Sic. S:}. t. \C). 

 C. acris, flore albo. Merr. Pin. 29. 

 C. annua acris alba elatior, linariiu t'oliib. Moris, v. 3. 1 15. sect. 7. 



/. 20./. 29. 

 \*irga aurca virginiann irsiita annua, di lioro pallido. Zan. I.sl. 20 1. 



/.78. 



