Vox,, ir.] 



WATER LILY FAMILY. 



45 



Castalia tetragona (Georgi) Lawson. 



(Fig. 1533.) 



Small White Water Lily. 



Nymphaea tetragona Georgi, Reise in 

 Russ. Reichs, i: 220. 1775. 



Castalia pygmaea Salisb. Parad. Lond. 

 pi. 68. 1807. 



CZ,/fo?r-*YMorong.Bot.Gaz.i3: 134. 1888. 



Castalia tetragona Lawson, Trans. Roy. 

 Soc. Canada, 6: Sec. IV. 112. 1888. 



Leaves floating, oval or oblong, 2 / -4 / 

 long, i ^'-3' wide, green above, green 

 or purplish beneath, the basal lobes 

 acute or rounded; sinus open, narrow; 

 petioles and peduncles nearly or quite 

 glabrous; flowers white, inodorous, i x - 

 2' broad; petals in about 2 rows, faintly 

 striped with purple, obtuse or acutish, 

 oblong or obovate, thin, about the 

 length of the sepals. 



In the Misinaibi River, Ontario (R. 

 Bell); in ponds along the Severn River, 

 Keewatin (J. M. Macoun); near Granite 

 Station, northern Idaho (Leiberg). Also 

 in Siberia, Japan and the Himalayas. 

 Summer. 



5. NELUMBO Adans. Fam. PL 2: 76. 1763. 



Large aquatic herbs, with thick rootstocks, long-petioled concave emersed or floating 

 leaves, and small and scale-like submerged ones borne sessile on the rootstock. Flowers 

 large, showy, yellow, pink or white. Sepals 4 or 5, imbricate. Petals and stamens oo, in- 

 serted on the calyx, caducous. Filaments more or less petaloid; anthers introrse. Carpels 



00 , distinct, contained in pits in the large convex receptacle. Style short; ovules i or 2, pen- 

 dulous or anatropous; endosperm none; cotyledons thick, fleshy. Nuts globose or oblong. 

 [Ceylon name for N. Nelumbo.'] 



A genus of 2 species, one North American, the other Asiatic and Australasian, known as Water- 

 bean. 



Flowers pale yellow; plant native. 

 Flowers pink or white; plant introduced. 



1. Nelumbo lutea (Willd.) Pers. American Nelumbo or Lotus. (Fig. 1534.) 



Nelumbium htleum Willd. Sp. PI. 2: 1259. 1799. 

 Nelumbo lutea Pers. Syn. i: 92. 1805. 



Rootstock nearly horizontal, tuberiferous. 

 Emersed leaves i-2 broad, nearly orbi- 

 cular but often somewhat constricted in the 

 middle, centrally peltate, raised high out of 

 water or floating, prominently ribbed, gla- 

 brous above, more or less pubescent and 

 lepidote beneath, the lower surface marked 

 with an oblong, transverse area; petioles 

 and peduncles thick, 3-7 long, with sev- 

 eral large air-canals; flowers pale yellow, 

 4 / -io / broad; petals concave, obovate, ob- 

 tuse; anthers appendaged; fruit obconic or 

 somewhat hemispheric, $'-$' long; seeds 

 nearly globular, 6" in diameter. 



Grand River, near Dunnville, Ont. ; Sodus 

 Bay, Lake Ontario; in the Connecticut River 

 near Lyme; Swartswood Lake, northern New 

 Jersey; ponds at Woodstown and Sharptown, 

 southern New Jersey; formerly in the Delaware 

 River below Philadelphia, and locally south to 

 Florida, west to Michigan, the Indian Territory 

 and Louisiana. Tubers and seeds farinaceous, 

 edible. Called also Great Water Lily, and 

 Water Chinkapin, or Wankapin. July-Aug. 



1. TV. lit tea. 



2. N. Nelumbo. 



i 



