CRUCIFERE. (MUSTARD FAMILY.) 25 
3. N. palustre, DC. Smooth or hairy; stem erect, branching ; leaves 
clasping, pinnatifid, with toothed lobes ; silique short, ovate or oblong-ovate, 
pointed with the distinct and rather slender style, barely half as long as the 
spreading pedicel. — Wet places, North Carolina and westward. June- August. 
— Stem 19-29 high. Flowers small, yellowish. 
4. N. lacustre, Gray. Smooth; stem sparingly branched ; immersed 
leaves pinnately divided into very numerous capillary segments, emersed ones 
lanceolate, serrate ; silique 1-celled, obovate, pointed with the slender style, shorter 
than the spreading pedicel.— Rivers and cool springs, West Florida, thence 
northward and westward. July.—Stem 19-39 long. Flowers conspicuous, 
white. 
5. N. officinale, R.Br. (Warer-Cress.) Stems spreading and root- 
ing; leaves pinnate, with the leaflets roundish or oblong and nearly entire; 
silique linear (6"—8" long), on slender spreading pedicels; petals white, — 
twice the length of the calyx. — Ditches, &c., Florida and northward. Intro- 
duced. 
2. IODANTHUS, Torr. & Gray. 
Silique linear, elongated, terete ; the valves nerveless. Seeds in a single row 
in each cell, not margined. Cotyledons accumbent. Claws of the violet-purple 
petals longer than the calyx. — A smooth perennial, v oe Lect 
and toothed leaves, the Beds reme e-pinnatific ; 
in panicled racemes. —— ! SOROR AIDE US NUM ipea 
LE hesperidoides, Lo & Gray. “ (Hesperis pinnatifida, Micke.) = 
Banks of rivers, Tennessee and northward. May and June. — Stem 19-39 
high. Pods 1’ or more long, curving upward. 
3. CARDAMINE, L. 
Silique linear, flattened ; the valves nerveless, usually opening elastically from 
the base. Seeds several, wingless, disposed in a single row in each cell, sus- 
pended by filiform stalks. .Cotyledons accumbent. — Herbs. Leaves often un- 
divided, Flowers purple or white. 
* Perennials. : 
i. fotundifolia, DC. Smooth; root fibrous ; stem erect, staple, 
soon bearing from the root or upper axils long and Us runners ; leaves oval 
or orbicular, often cordate, wavy or toothed, the lowest long-petioled and some- 
times sparingly pinnatifid; silique subulate, spreading ; seeds oval. — Cool. 
springs, in the upper districts and northward. May and June. — Stem 6/12! - 
high. Runners at length 29 —39 long. Flowers conspicuous, white. 
2. C. rhomboidea, DC. Smooth; root tuberous; stem simple, erect, - 
without runners; leaves long-petioled, round-cordate, with wavy margins; the — 
. uppermost oblong-ovate, toothed, sessile; silique linear-lanceolate, poi 
the sleanien nies seeds round-oval.— Cool springs, West: Florida 
