26 
fluviatilis. 
peltata, 
luteus. 
POLYANDRIA, POLYGYNIA. 
9. R. leaves all dichotomously capillaceous, stem 
swimming.— Willd. 
Icon. Fl. Dan. 376. 
River Crow-foot. 
A deep-green aquatic plant, covering ditches fora great ex- 
tent, with its stems and leaves. Flowers white, small, and 
raised about an inch above the surface of the water. In all the 
ditches of the Neck, and in those of Jersey; very common. 
Perennial. June, July. 
262. BRASENIA. Gen. pl. 938. (Hydrocharides.) 
Calix 6-leaved, petaloid, persistent, the 3 in- 
terior longer. Corolla none. Stamina 48. 
to 36, about the length of the calix. Utri- 
culr oblong, 6 to 9; 2-seeded.—N uit. 
1. B. leaves centrally peltate, oval, very entire, 
peduncles solitary, one-flowered.—Pursh. 
Hydropeltis purpurea, Mich. 
Icon. Bot. Mag. 1147. Pluk. alm. t. 349. f. 3. 
Water-shield. 
An aquatic plant, which I have neverseen. Above the falls 
of Schuylkill, two or three miles, east side; Mr. Collins. Pe- 
rennial. June. 
263. CYAMUS. Salisbury. (Hydrocharides.) 
Calix petaloid, 4. or 5-leaved. Petals many. 
Fruit turbinate, with a truncated disk ex- 
cavated with numerous cells, each contain- 
ing a single seed. Seed an ovate nut 
crowned with the persistent style.—Wutt. 
1. C. leaves peltate, orbiculate, very entire; co- 
rolla polypetalous, anthers linear above.—Salis- 
bury. Peduncles and petioles muricate.—Bart. 
Prod. Fl. Ph. p. 59. 

