130 POLYGAMIA, FRUSTRANEA. 
526, RUDBECKIA. Gen. pl. 1324. ( Corymbifere.) 
Calix subequal, mostly consisting of a double 
series of leaflets. Receptacle paleaceous, 
conic. Pappus a 4-toothed margin.— Nutt. 
laciniata 1, R. lower leaves pinnate; wings three-lobed, 
upper ones ovate; pappus crenate; stem gla- 
brous.—Schrader. Willd. enum. 
Icon. Corn. Canad. t. 179. (Pursh.) Morris. 
Hist. 3. s. 6. t. 6. f. 55. 
Jagged-leaved Rudbeckia. 

A fine showy plant, from three to six feet high. Flowers | 
very large, yellow, with the petals long, drooping. I have | 
cultivated this plant, in my garden, and found it hardy. In : 
watery thickets, and on the margins of all the neighbouring 
waters; common. Perennial. August, October. 
pinata? =, R. all the leaves pinnate, one or both of the lower 
wings bi-partile, the rest undivided ; pappus very 
entire; stem furrowed, hispid.—Schrader and 
Willd. enum. 
R. digitata, Willd. Sp. Pl. 
R. odorata, Hortul. 
_ Icon. Smith Exot. Bot. 38. Vent. jard. cels. 71. 
. 
i 
Resembles No. 1, very much. I am not certain that this is | 
the true pinnata; it seems, however, to fit the description. In | 
thickets near the Buck-inn on the Lancaster-road, very rare. 
Flowers yellow. Perennial. July, August. ; 
327. BIDENS. Gen. pl. 1267. ( Corymbdifere.) 
Calix subequal, caliculate. Hays often want- 
ing. Keceptacie paleaceous, flat. Pappus 
2 or & reflected or erect and retrorsely sca- 
brous awns. Seed 4-sided.—NWuit. 
cenua, 1+ DB. flowers subradiated, drooping ; exterior ca- 
