An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian ed2illustratedflo02brit Year: 1913 Gencs I WATER LILV FAMILY, 3. Nymphaea sagittaefolia Walt. Arrow-leaved Pond Lily. Fig. 1841. Xymphaea sagittaefolia Walt. Fl. Car. Nuphar sagittaefolia Pursh, Fl. \m. Sept. 3- Floating leaves narrowly ovate or ovate-lanceolate, gla- brous, obtuse, 8'-l5' long, 2-3' wide; submerged ones numerous, similar, but membranous and commonl)- larger:
An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian ed2illustratedflo02brit Year: 1913 Gencs I WATER LILV FAMILY, 3. Nymphaea sagittaefolia Walt. Arrow-leaved Pond Lily. Fig. 1841. Xymphaea sagittaefolia Walt. Fl. Car. Nuphar sagittaefolia Pursh, Fl. \m. Sept. 3- Floating leaves narrowly ovate or ovate-lanceolate, gla- brous, obtuse, 8'-l5' long, 2-3' wide; submerged ones numerous, similar, but membranous and commonl)- larger: flowers }-ellow, about i' broad; sepals 5; petals broadened above, 3' long; stamens in 4 or 5 rows, the filaments about equalling the anthers; stigmatic disk crenate, ii-15-rayed: fruit ovoid, not constricted into a neck, about i' long. In ponds and streams, eastern Xorth Carolina and South Carolina. Recorded as occurrine in ponds (now drained') in southern Indiana and Illinois. Plants of the Gulf States for- merly referred to this species prove to be distinct. Alligator- bonnets. Summer. 2. CASTALIA Salisb. in Konig & Sims, Ann. Bot. 2: 71 Aquatic herbs, with horizontal perennial rootstocks, floating leaves and showy flowers. Sepals 4. Petals », imbricated in few'to many series, inserted on the ovar)-, gradually pass- ing into stamens; stamens =c, the exterior with large petaloid filaments and short anthers, the interior with linear filaments and elongated anthers. Carpels », united into a compound pistil with radiating linear projecting stigmas. Fruit globose, covered with the bases of the petals, ripening under water. [.A spring of Parnassus.] About 40 species, of wide geographic distribution. Type species: Castalia pudica Salisb. Flowers i's'A' broad, fragrant; leaves orbicular to reniform, purplish beneath, i. Flowers 4'-9' broad, not fragrant; leaves orbicular, green both sides. z. C. tuberosa. Flowers I'-i'A' broad not fragrant; leaves oval. 3.
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