42 NYMPHAEACEAE, (Von. II. 
2. BRASENIA Schreb. Gen. Pl. 372.0 mLySOs 
Stem slender, several feet long, branching, covered with gelatinous matter as are the 
petioles, peduncles and lower leaf-surfaces. J,eaves alternate, oval, entire, 2’-4’ long, long- 
petioled, centrally peltate, floating, palmately veined. Flowers axillary, purple. Sepals 
and linear petals 3. Stamens 12-18; filaments filiform. Carpels 4-18, separate. Ovules 2-3, 
pendulous from the dorsal suture. Ripe carpels indehiscent, coriaceous, 1-2-seeded. [Name 
unexplained. } \\ i 
A monotypic genus of North America, Cuba, Sh 
eastern and tropical Asia, west tropical Africa, and 
Australia. 
1. Brasenia purpurea (Michx.) Casp. 
Water-shield or -target. (Fig. 1526.) 
Menyanthes nymphaeoides Thunb. Fl. Jap. 82. 
1784. Not L. 1753. 
Hydropeltis purpurea Michx. FI. Bor, Am. 1: 324. 
pl. 29. 1803. 
Menyanthes pellata Thunb. Nov. Act. Upsal. 7: 
142. 1815. 
Brasenia peltata Pursh, Fl. Am. Sept. 389. 1814. 
Brasenia purpurea Casp. in Engl. & Prantl, Nat. 
Pfl. Fam. 3: Abt. 2, 6. 1890. 
Rootstock slender. Leaves 2’—4’ long, 114’— 
2’ wide, thick, rounded at each end; flowers 
5/’/-6’’ in diameter, on long stout peduncles; 
fruit oblong, 3-4’ long. 
In ponds and slow streams, Nova Scotia to 
Florida, west to Manitoba and Texas. Also in 
Cuba, Mexico, and at a few stations on the Pacific 
Coast from California to Washington. Summer. 
5 U 
3. NYMPHAEA L,. Sp. Pl. 510. 1753. 
[NUPHAR Sibth. & Smith, Fl. Graec. Prodr. 1: 391. 1806.] 
Aquatic herbs, with cylindric thick horizontal rootstocks, and large cordate leaves with 
adeep sinus. Flowers showy, yellow, or sometimes purplish. Sepals 5-6, concave, thick. 
Petals «©, small, stamen-like, hypogynous. Stamens ©, hypogynous. Carpels », many- 
ovuled, united into a compound pistil. Stigmas disciform, 8-24-radiate. Fruit ovoid, naked. 
Seeds with endosperm. [Greek, water-nymph. ] 
A genus of about 8 species, natives of the north temperate zone. 
Leaves broadly ovate or oval. 
Leaves 5/-12' long; stigma 12-24-rayed; petals truncate, fleshy. 
Leaves 3'-10' long. stigma 9-12-rayed; petals spatulate, fleshy. 
Leaves 2'-4' long; stigma 7-10-rayed; petals spatulate, thin. 
Leaves narrowly ovate or ovate-lanceolate. 
1. Nymphaea Advena Soland. Large Yellow Pond Lily. (Fig. 1527.) 
“1 Nymphaea advena Soland. in Ait. Hort. Kew. 2: 
226. 1789. 
Nuphar advena R. Br. in Ait. Hort. Kew. Ed. 2, 
n 3:295. 811. 
y Floating and emersed leaves 5’—12’ long, 5’-9’ 
‘) broad, ovate or orbicular-oval, thick, the sinus 
2/-5/ deep, generally open; submerged leaves, 
when present, thin-membranous, nearly orbi- 
cular, otherwise similar; petioles, peduncles 
and lower surfaces of the leaves often pubes- 
cent; flowers 114’-3!4/ in diameter, depressed- 
globose, yellow or tinged with purple; sepals 
6, oblong, about 114’ long; petals fleshy, ob- 
long, truncate, 4’/-5’” long; stamens in 5-7 
rows; anthers about the length of the fila- 
ments; stigmatic disc undulate, yellow, or pale 
red, rays 12-24; fruit ovoid, not deeply con- 
stricted into aneck, 1 %4’—2’ long, about 1’ thick. 
In ponds and slow streams, New Brunswick 
and Nova Scotia to the Rocky Mountains. south 
to Florida, Texas and Utah. April-Sept. Rev. 
Thos. Morong (Bot. Gaz. 11: 167) describes a 
var. (?) minor of Nuphar advena having 
smaller flowers, the margins of the stigmatic dise more crenate, rays 10, and fruit only 1’ long. 
Called also Cow-lily and Spatter-dock. 
N. advena. 
N. rubrodisca. 
N. Kalmiana, 
. N. sagitlaefolia. 
SOD 
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