542 NYMPHAEACEAE 
. N. macrophylla Small. Leaf-blades ids or floating, elliptie-ov b 28—40 
em. long, glabrous, the sinus V-shaped: flowers spheroidal, 3.2—3.8 c 
6 the 3 h 
eter: sepals 6, uter obovate, about ng, the 3 inner broadly 
cuneate-obovate; petals light doo yellow, broadly euneate, about 10 mm. long: 
filaments about 15 as long as the anthers, lemon-yellow: fruit narrowly ovoid, 
about 3.5 em. long; disk paces led to red.—Streams and sloughs, N E Fla. 
and the peninsula. 
. N. orbiculata Small. Leaf-blades floating, suborbieular, 3-5 dm. long, 
glabrous above, mul Mie a sinus closed by the overlapping lobes: Pun 
ers us pes Raus n diameter: mee, sepals elliptic, about 
long, t n si ae pus clawed: petals linear to elliptic- obovate: 
mu slightly shorter than the anthers: Ps dedi about 4 
long, the stigmatic disk with erect edges: seed 4 . long.—Lakes and aud. 
Coastal Plain, M Fla. and adj. Ga. | 
8. N. bombycina Miller & Standley. Leaf-blades floating, broadly ovate 
to orbieular- -ovate, 2-3 dm. long, glabrous above, densely silky benea th, the 
sinus open: flowers spheroidal, 6-8 em. in diameter: outer sepals elliptic, 
2.54.5 € ic ion ng, the inner obovate: nd pas often truncate, 6-10 mm. long: 
filaments a 15 as long as the anthers: fruit ovoid to nearly cylindric, 5-6 
em. long, the stigmatie disk vith c spreading ee : seed 6 mm. long. 
—Ponds, Coastal Plain, N Fla. to Ga. 
2. CASTALIA Salisb. Plants with floating leaf-blades and white, 
dina blue, or yellow flowers. Leaf-blades subpeltate, cleft at the base. Sepals 
adin 
mostly 4, spr PR a s few to many, spreading, the outer ones as large as 
the sepals, born h the stamens on the span, which encloses the 
ovary. Berry poet with the persistent petal- and s re maturin = 
under water.—About 40 species, of wide geographic puru tion.—WA 
LILIES. WATER-NYMPHS. POND-LILIES.— The inner petals NM Cd, a 
Corolla white, pinkish, blue or violet: rootstock not stoloniferous. 
Corolla white or pinkish: outer stamens not appendaged at 
the apex: styles subulate. I. ODORATAE. 
pe blue x violet: outer stamens with the connective pro- 
ced i an apical appendage: styles mere blunt pro- 
ub. ran s II. ELEGANTES. 
Corolla yellow : rootstock stoloniferous at the tip. III. FLAVAE, 
I. ODORATAE 
Need O 5 mm. long or less, when converging not 
g at the tip: style- disk basin- shaped : corolla mostly 
10 c wide or less: leaf-blades flat 
Calyx 9- ‘11 em. wide: petaloid pm 3-3.5 em. long: 
an- 
A of the inner stamens 6-7 mm. long: Style. disk 17-20 
wide. 1. C. odorata. 
Calyx pine 6-8 em. wide: petaloid stamens 2-2.5 mm. long: 
n A Er inner stamens 10-11 mm. long: style-disk 
2. C. minor. 
Styles donders ubet, 10 mm. long or more, when converging 
meeting at the tip: style- disk funnelform : corolla =i over 
15 cm. wide: leaf-blades with the edges turned up 9. C. lekophylla. 
ELEGAN 
Plants with slender petioles and flower-stalks, ims leaf-blades 
floating, the flowers elevated above the water 4. C. elegans. 
III. FLAVAE 
Plant with warty rootstocks and somewhat peltate leaf-blades. 5. C. flava. 
1. C. odorata (Ait. Woodv. & Wood. Roostock stout, mostly 2.5-3 cm. 
thiek: leaf-blades ence 15-20 em. wide, green tinged with red or 
