SYNGENESIA. SUPERFLUA. 8i 



A. cowciNNUS. Pk. Stem simple J paniculate at summit; leaves lanceolate, sub-amplexicau!, glabrous. 

 Fl. Beginning of October- ' Fr. mat. Last of October. 



Hab. Woodlands: near Wm. Brinton's Lime quarry: rare- 1 to 2 feet high: rays pale purple, long. 

 A. PuviCEUs. Ph. Stem hispid; leaves amplexicaulj lanceolate, serrate, rough; branches paniculate 

 Fl. Middle of September. Fr- mat. Middle of October. 



Hab. Borders of swamps; thickets, &c. frequent. 2 to 4 feet high: rays blue, long, disk yellow. 

 A- sEROTiTrtTs? Ph. Glabrous; leaves oblong-lanceolate, acuminate, sessile; branches corymbose. 

 Fl. Beginning of October. Fr. mat. Beginning of November. 



Hah. Moist, shaded grounds: forks of Brandywine: not common. 3 to 5 feet high: rays pale purple, long, 

 Obi. This agrees pretty well with the A. serotinus, of Willdenow, and Puvsh,— except that the rays of 

 the flowers are often nearly white, or very slightly tinged with reddish purple. 



A. coNYZoiDEs- Ell. Leaves lance-oval, lower ones tapering at base to a petiole, upper ones sessile, 



Synon. A. marilandicus. Mx. 



Fl. Last of July, and after. Fr. mat. Middle of September, and after. 



Hab. Woodlands: Patten's; Barrens, &;c. frequent. 12 to 18 inches high: rays white- 



A. LANCEOLATUs.' JVilld. Glabrous; lower leaves ovate-lanceolate, petiolate, upper lanceolate, sessile. 



Fl- Latter end of August. Fr. mat. Last of September. 



Hab. Woodlands; Wm. Osborn's: not common- About 2 feet high: rays white, large. 



Obs. I nm by no means confident of this species. The lower stem-leaves are ovate-lanceolate, serrulate, 

 sub-cordate at base, on marginate petioles about 2 inches in length; the upper leaves are narrow-lan- 

 ceolate, sessile, and nearly entire. The flowers are beautifully white; and crowded on the branches, ia 

 somewhat racemose panicles. 



I have several other specimens of this formidable genus, which I have not yet been able to deteimine 

 sufficiently, to warrant the attempt to enumerate them; and I have no doubt there may be a number more, 

 in this vicinity, which have hitherto escaped my notice. I fully concur, however, with Mr. Nuttall, [in the 

 opinion, that many species have been created out of our numerous polymorphous varietia. 



b. Receptacle mostly chaffy. 



29rf HELENIUM. Nutt. Gen. 684. 

 [An ancient name; said to have been derived from Helen, the Greek beauty. See De Theit.} 

 Cal. simple, many parted. Cor. rai/s semi-trifid. Pap;;us chaffy, 5 leaved, awned. iJccepi. globose 

 H AUTUMN^ALE. Ell. Leaves lanceolate. Serrate, sub-decurrcnt; flowers corymbose; rays flat, reflextd- 

 Vulgo — False Sun-flower. Sneeze-weed. 



Fl. Middle of August, and after. Fr. mat. Middle of October. 



Hab. Creek banks: Brandywine, abundant. 2to 5 feet high: flowers yellow- 

 Obs. The powdered receptacle, and calyx, possess active errhine properties- 



298. ANTHEMIS. Nutt. Gen. 679. 

 [Gr. Anthemon, a flower; from the great number which it produces-] 



Cal. hemispherical, sub-equal. Cor. rfl?/s more than 5. Piv/ijjhsO, or a membranaceous margin. 

 A- ARVEi^sis. IVg. Receptacle conic; chafTlanceoIate; seed crowned with a margin. 

 Vulgo—Fidd Chamomile- Corn Chamomile. 



Fl- Beginning of June. Fr- mat. Latter end of July. 



Hab. Cultivated grounds; and pastures: Patton's, &c. frequent. About 1 foot high; rnys white. 



Ob». A foreigner; but becoming naturalized. This species is htodormts. 

 A- COTULA. Ell. Receptacle conic; chaff setaceous; seed naked; leaflets subulate, Sparted- 

 Fu/g-o— May weed. Slinking Chamomile. Richardson's Pink. Dog's Fennell. 

 Fl. Last of June till autumn. Fr- viat. August, and after- 



Hab. Roadsides; farmyards, &c. common. 6 to B inches high: rayswiiite. 



Obs. A disagreeable, fetid little foreign weed; which has become extensively naturalized. 



293. ACHILLEA. Nutt. Gen. 680. 

 [In honor of Achilli's, adis,ciple of Chiron; who first introduced it to notice] 

 Cai.. ovate, imbricate. Con. rays 5 to 10, roundish. Pappus 0. 

 A. MILLEFOLIUM. Ell- Stemsulcate; leaves bipinnatifid, hairy, segments linear, dentate, mucronate. 

 Fu/go— Yarrow. Milfoil- Nose-bleed. Sneeze-Wort. 



Fl. Beginning of June till September. Fr. mat August, and after. 



Hab- Fence-rows; pastures, &c. common. 2 to 3 feet liigb: flowers wlufe- 

 Obs A naturalized foreigner It is a pleasant; aromatic bitter; and popular as atonic— used in infusion 



