P0LYANDRI4. P0£YGYNIA. 25 



393. CYAMUS. Salisfnirij, (Water Chinquepin.) 

 Calix petaloid, 4 or 5-Ieaved. Petals many. 

 Fruit turbinate, with a truncated disk excava- 

 ted with numerous cells, each containing a sin- 

 gle seed. Seed An ovate nut crowned with tlie 

 persistent style. 



The most magnificent of aquatic plants; leaves alter- 

 nate, peltate, orbicular, ample; peduncles extremely li>n£^ 

 and axillary, rising considerably above the w ater, more oj* 

 less scabrous; flowers very large, yellowish white or ro- 

 saceous. Petioles and peduncles givmg out on incision 

 a milky fluid. 



Species. 1. C. htteiis. ( JStelamhium hiteum. TVilld.) 

 Petioles and peduncles partly muricated, as well as in C. 

 indicus. Flower larger than that produced, by any other 

 plant in Vorth America except MagJiolia macrophyllu. 2. 

 pentapetaliis. A very doubtful plant as well as the follow- 

 ing. 3. renifonnis. 



Of this genus there is another species indigenous to the 

 waters of India and Persia. 



VOL. II. 



