3. L. Ludoviciàna, Watson. Biennial or perennial; pubescence compact; leaves linear-oblanceolate, mostly entire; pods pubescent, pendulous on recurved pedicels; style long. (Vesicaria Ludoviciana, _DC._)--Minn. to Neb. and southwestward. 9. CAMÉLINA, Crantz. FALSE FLAX. Pod obovoid or pear-shaped, pointed, flattish parallel to the broad partition; valves 1-nerved. Seeds numerous, oblong. Cotyledons incumbent. Style slender. Flowers small, yellow. (Name from χαμαί, _dwarf_, and λίνον, _flax_.) C. SATÌVA, Crantz. Annual; leaves lanceolate and arrow-shaped; pods margined, large. A weed in flax-fields, etc. (Adv. from Eu.) 10. SUBULÀRIA, L. AWLWORT. Pod ovoid or globular, with a broad partition; the turgid valves 1-nerved. Seeds several. Cotyledons long and narrow, incumbently folded transversely, i.e., the cleft extending to the radicular side of the curvature. Style none.--A dwarf stemless perennial, aquatic; the tufted leaves awl-shaped (whence the name). Scape naked, few-flowered, 1--3´ high. Flowers minute, white. 1. S. aquática, L. Margin of lakes in Maine; Echo Lake, Franconia, N. H.; also in alpine regions of the western mountains. June, July. (Eu.) 11. NASTÚRTIUM, R. Br. WATER-CRESS. Pod a short silique or a silicle, varying from oblong-linear to globular, terete or nearly so; valves strongly convex, nerveless. Seeds usually numerous, small, turgid, marginless, in 2 irregular rows in each cell (except in N. sylvestre). Cotyledons accumbent.--Aquatic or marsh plants, with yellow or white flowers, and commonly pinnate or pinnatifid leaves, usually glabrous. (Name from _Nasus tortus_, a convulsed nose, alluding to the effect of its pungent qualities.) § 1. _Petals white, twice the length of the calyx; pods linear; leaves pinnate._ N. OFFICINÀLE, R. Br. (TRUE WATER-CRESS.) Perennial; stems spreading and rooting; leaflets 3--11, roundish or oblong, nearly entire; pods (6--8´´ long) ascending on slender widely spreading pedicels.--Brooks and ditches; escaped from cultivation. (Nat. from Eu.) § 2. _Petals yellow or yellowish, seldom much exceeding the calyx; pods linear, oblong, or even ovoid or globular; leaves mostly pinnatifid._ [*] _Perennial from creeping or subterranean shoots; flowers rather large, yellow._ N. SYLVÉSTRE, R. Br. (YELLOW CRESS.) Stems ascending; _leaves pinnately parted_, the divisions toothed or cut, lanceolate or linear; pods (½´ long) on slender pedicels, linear and narrow, bringing the seeds into one row; _style very short_.--Wet meadows, Mass. to Va.; rare. (Nat. from Eu.) 1. N. sinuàtum, Nutt. Stems low, diffuse; _leaves pinnately cleft_, the short lobes nearly entire, linear-oblong; pods linear-oblong (4--6´´ long), on slender pedicels; _style slender_.--Banks of the Mississippi and westward. June. [*][*] _Annual or biennial, rarely perennial (?), with simple fibrous roots; flowers small or minute, greenish or yellowish; leaves somewhat lyrate._