LIST OF SEEDS, BULBS, TUBERS, ETC. IL7 
drawing the fruit under water to ripen. Named for 
Ant. Vallisneri, an early Italian botanist. 
V. Spiralis, L.:—Leaves lineal, thin, long and _ rib- 
bon-like (1—6° long), obscurely serrulate, obtuse, 
somewhat nerved, and netted-veined. Common in slow 
waters, New England to Florida, west to Minnesota 
and Texas. 
Tribe SrratTiore®, Richard :—American Frogbit. 
Limnobiuim—Teal moss, grass or weed :—Flowers 
dicecious (or moncecious), from sessile or somewhat 
peduncled spathes; the sterile spathe one-leaved, pro- 
ducing about three long-pediceled flowers; the fertile 
two-leaved, with a single short pediceled flower; calyx 
three-parted or cleft; sepals oblong-oval; petals three, 
oblong-lineal; filaments entirely united in a central 
solid column, bearing six to twelve lineal anthers at 
unequal heights ; there are three to six awl-shaped rudi- 
ments of stamens in the fertile flowers. Ovary six to 
nine celled, with as many placentze in the axis, forming 
an ovoid many-seeded berry in fruit; stigmas, as 
many of the cells, but two-parted, awl-shaped. A 
stemless perennial herb, floating in stagnant water, pro- 
liferous by runners, with long-petioled and round heart- 
shaped leaves, which are spongy-reticulated and pur- 
plish underneath ; rootlets slender, hairy. Sterile flow- 
ers rather small, the fertile larger; peduncle nodding 
in fruit. Petals white (name from Amvofus, living 
in pools). 
L. Spongia, Richard:—-Leaves 1—2’ long, faintly 
five-nerved; peduncle of sterile flower about 3° long 
and filiform, of the fertile only 1’ long and stout. Stag- 
nant water, New Jersey to Florida, also Lake Ontario, 
Illinois and Missouri. 
