16 DICTOLYLEDONCITS. 



and are used as food by the Indians. Ihe flowers are the largest of any North 

 American plant except the Magnolia Macrophylla. (Nuttall.) 



Order IX. NYMPH^ACE^. 



Sepals persistent 5-6. Petals numerous, imbricate. Sta- 

 mens numerous in several rows, some of the filaments petaloid. 

 Anthers adnate, introrse. Fruit many celled, fleshy, many see- 

 ded. iSeeiZ-s anatropous, containing farinaceous albumen. Em- 

 bryo minute. Aquatic plants, herbaceous. 



Genus 1. NYBIPH^A. 



Sepals 4-5 persistent. Petals and Stamens numerous and 

 passing into each other. 



I. N. Odorata. ^/lizoma very large, ieaws floating, nearly orbicular or 

 cordate, strongly veined beneath. Stigma sessile, with numerous rays, in- 

 curved. The leaves of this plant vary considerably in form, giving rise to 

 several varieties. The lobes of some being much more acute than those of 

 others; and in one variety called the N. Rosea the leaves are smaller and 

 flowers rose c .lor. White Pond-lily. 



White. %. June. Common in ponds. 



Remarks.— A. beautiful plant distinguished by the delicious odor of its large whitPr 

 flowers. The genus is more properly the indigenous production of the East Indies. 

 Several species growing there, and but one on the continent of North America. The 

 plant has been sometimes employed in medicine, but we believe has pretty muchi 

 passed from use. The Egyptian Lotus is a species of this genus, the N. Lotus, which is 

 said to resemble our species. 



Genus IL NUPHAR. 



Sepals 5-6. Petals numerous, small, externally nectarife- 

 rous, inserted with the Stamens into the base of the torus. 

 Fruit fleshy, many celled, many seeded. 



1. N. Advena. Leaves semi-orbicularly cordate, lobes diverging; peti- 

 oles long, solitnry. Flowers large, emerging. Petals and filaments nearly 

 confounded. Cells of the fruit equal in number to the rays, and when per- 

 fectly matured separate spontaneously. Yellow Pond-lily. 



Yellow. %. July. Canada to Florida in deep water. 



2. N. Sagitt^folia. Leaves on long sub-spiral petioles, membranace- 

 ous, nearly a foot long, sagittate, obtuse. Petals none; the inner sepals pe- 

 taloid, the outer green. 



n\. Ju. N. C. to Geo. 



Order X. SARRACENIACE.E. 



Sepals 5, persistent, aestivation imbricate, with a three leaved 

 involucre. Petals 5, unguiculate, concave. Stamens numer- 

 ous; anthers adnate, introrse. Ovary 5-celled, with a central 

 placenta. Stigma very large, 5-angled, petaloid, peltate, cov- 

 ering the Stamens. Capsules 5-celled, 5-valved, many seeded, 

 with loculicidal dehiscence. Seeds anatropous. Herbaceous 

 plants, growing in swamps. 



