56 NELUMBIACE^. Nelcmbium. 



with a tubercle near the base; the sides slightly convex.— C7mm. I.e. p. 505. 

 t. 5. Jig. 6. e. C. submersum, DC. prodr. 3. p. 74, fide Cham. 

 California near St. Francisco, Chamisso. 



2. C. echinatum (Gray) : achenium elliptical, slightly compressed, with 3 

 short spines ; sides strongly muricated ; margins sligiitly winged, not gibbous, 

 armed with blunt teeth, which finally become weak spines or horns as long as 

 the lateral spines. — Gray, I. c. p. 49. — C. demersum (wholly or in part) of 

 American botanists. 



Princeton, New-Jersey ! in deep water. — Achenium rather large. Near C. 

 muricatum, Cham. — Specimens of Ceratophyllum are seldom collected in 

 fruit, and little is known concerning our species. On further investigation 

 other species may be discovered, or, which is not very improbable, the various 

 forms that have been described may prove to be states of the same species. 



Order IX. NELUMBIACE^E. Lindl 



Sepals 4 or 5. Petals numerous, in many rows, arising outside the 

 disk. Stamens indefinite, in several rows, arising from within the pe- 

 tals : filaments petaloid : anthers adnate, introrse. Torus a fleshy 

 elevated disk, excessively enlarged, enclosing the numerous separate 

 ovaries in hollows of its substance. Nuts numerous, loose and half 

 buried in hollows of the disk, 1- (rarely 2-) seeded, crowned with 

 the style. Seed suspended, orthotropous, destitute of albumen. Em- 

 bryo large, with 2 fleshy cotyledons and a highly developed plumule, 

 consisting of a pair of primordial leaves and a bud, enclosed in the 

 persistent membrane of the nucule. — Herbs, growing in deep water, 

 with large emersed centrally peltate fleshy leaves, and 1-flowered 

 peduncles arising from a prostrate rhizoma. Flowers very large. 

 Juice milky. 



1. NELUMBIUM. Juss. ; Willd. sp. 2. p. 125S. 



Nelumbo, Ada/is. 

 Character same as of the Order. 



1. N. luteum, (Willd.) : anthers produced into a linear appendage. — DC. 



?irodr. 1. p. 113; Turpin, in ann.mus.l.p. 210. f. 11. Nymphaea Ne- 

 umbo, Walt. Car. p. 155. Cyamus flavicomus, Salisb. ami. hot. 2. p. 45 ; 

 Pursh, fl. 2. p. 398. Cyamus luteus, Nutt. gen. 2. p. 5. Nelumbium co- 

 dophylliim, Raf. Jl. Ludov.? 



In ponds and lakes throughout the Southern and Western States ! rare in 

 the Middle and Eastern. Big Sodus Bay, Lake Ontario, Dr. Sartwell! 

 Haddam, Connecticut, Prof. Hitchcock! Philadelphia! June. — Leaves 

 orbicular, 1-2 feet in diameter. Peduncles slightly muricate, emersed. 

 Flowers pale yellow. — A'', pentapetalum, Willd. (Nymphfea pentapetala, 

 Walt. " Corolla 5-petala, alba.") rests wholly on the authority of Walter, 

 and is probably not distinct. — The tubers, which, according to Nuttall, "re- 

 semble those of the Sweet-Potato and are connected by running roots, are 

 when boUed as farinaceous and agreeable as the potato, and are employed 

 for food by the Osage and other western Indians." NxUt. coll. fi. Arkans.dn 

 traits, am. phil. soc. 2. ser. 5. p. 160. 



