NATURAL ORDERS. 
249 
or 4, colored inside. Petals 3 or 4, alternate with the sepals. 
Stamens hypogynous, definite or indefinite ; filaments slender ; 
anthers linear, introrse. Carjpels 2 or more. Fruit indehiscent. 
Seeds pendulous ; emhryo minute, inclosed in a membraneous 
bag at the extremity of abundant fleshy albumen. 
Genus. — Hydropeltis. 
406. Nelumbiace^, the Water-hean Tribe. — Aquatic herhs^ 
with showy fiowers, and peltate, floating leaves. Sepals 4 or 5, 
deciduous. Petals numerous, in several rows, inserted into the 
base of the torus. Stamens numerous, in several rows ; filaments 
petaloid ; anthers adnate and introrse. Carpels numerous, im- 
mersed in hollows of the large fleshy torus, in fruit forming 
hard, round nuts. Seeds solitary, destitute of albumen ; emhryo 
large, with 2 fleshy cotyledons. 
Genus. — Welumbiuin. 
407. Nymph^ace^, the Water-Lily Tribe. — Aquatic herbs. 
Leaves peltate or cordate, arising from a prostrate trunk or 
rhizoma, and raised above the water on long stalks, or floating 
on the surface. Calyx and corolla composed of several or nu- 
merous sepals and petals, which gradually pass into each other, 
the inner series passing into stamens. Stamens numerous, in 
several rows, inserted above or with the petals ; many of the 
filaments petaloid ; anthers adnate, introrse. Ovary many- 
celled, many-seeded. Fruit indehiscent, crowned by the radi- 
ate stigmas. Seeds very numerous, covering the spongy dis- 
sepiments. Emhryo small, inclosed in a membraneous bag, and 
half immersed in the farinaceous albumen. 
a. Properties : some are astringent and bitter, while others are said to be seda 
Geneea. — Nymphaea, Nuphar, Victoria. Fig, 173. 
Fig. 173, a, Nymph^a odorata 
(pond-lily) ; b, a petaloid sta- 
men or inner petal bearing an 
anther at its tip ; c, a pistil, the 
floral envelopes, and all but one 
stamen removed ; d, a vertical 
section of the pistil ; e, trans- 
verse section of the base of a 
seed, cutting through the sac 
and embryo. 
408. SARRACENIACEiE, 
the Side-saddle flower 
Tribe. — Perennial herbs., 
found in boggy places. 
Leaves radical and hol- 
low, pitcher or trumpet 
Bhaped. i^^c?!^;^^' solitary, 
on a long scape. Sepals 
