POLYANDRIA, POLYGYNIA. 
cles somewhat naked, flowers drooping, sta- 
mens coloured . — WilUL and Pursh. 
Purple Meadow-rue. 
About eighteen inches or two feet high. Stem and filaments 
deep reddish -purple ; rare. In loW meadows near Woodbury, 
scarce. On the margins of a fosse, on the lower or east edge of 
Powelton, but rare. Perennial. June. 
258. HYDRASTIS. Gen. pi. 958. {Banunculacece,) 
Calix none. Petals^. JTectary none. Berry 
compound, granulations 1 -seeded. 
Canadensis. 1. H. stem above oppositely two-leaved ; leaves 
petiolate, emarginate at the base, palmate, ser- 
rate, incised; peduncle terminal, solitary, one- 
flowered. — Willd. and Piirsh. 
Warnera Canadensis, Miller. 
Icon. Mill. ic. t. 285. 
Yellow -root. 
About a foot or fourteen inches high. Flowers small, incon- 
spicuous. Roots very yellow, and yield a fine yellow dye. 
Possesses medicinal properties. A very rare plant in this vi- 
cinity, I have only found it on the high banks of the Wissa- 
hickon, near Germantown. Perennial. April, May. 
259. CALTHA. Gen. pi. 957. {Manunculacea .) 
Calix none. Petals 5 to 9. JSTectary none. 
Capsules several, many-seeded. 
paiustiis. 1. C. stem erect, corymbose, leaves cordate, reni- 
form : lobes spreading, the circumference acute- 
ly-crenate; flowers subsessile, petals ovate.— 
Willd. and Fursh. 
Populago palustris. Scop. 
Icon. FI. Dan. 668. Engl. Bot. 506. 
