Part 28 (1/2)

D. VeRNA, L. (WHITLOW-GRa.s.s.) Small (scapes 1--3' high); leaves all radical, oblong or lanceolate; racemes elongated in fruit; pods varying from round-oval to oblong-lanceolate, smooth, shorter than the pedicels.--Sandy waste places and roadsides. April, May. (Nat. from Eu.)

7. ALSSUM, Tourn.

Pod small, orbicular, with only one or two wingless seeds in a cell; valves nerveless, somewhat convex, the margin flattened. Flowers yellow or white. Filaments often toothed. Cotyledons acc.u.mbent. (Greek name of a plant reputed to check the hiccup, as the etymology denotes.)

A. MARiTIMUM, L. (SWEET ALYSSUM), with green or slightly h.o.a.ry linear leaves, honey-scented small white flowers, and 2-seeded pods, commonly cult., begins to be spontaneous southward. (Adv. from Eu.)

A. CALYCNUM, L., a dwarf h.o.a.ry annual, with linear-spatulate leaves, pale yellow or whitish petals little exceeding the persistent calyx, and orbicular sharp margined 4-seeded pod, the style minute, occurs occasionally in gra.s.sland. (Adv. from Eu.)

8. LESQUEReLLA, Watson.

Pod mostly globular or inflated, with a broad orbicular to ovate hyaline part.i.tion nerved to the middle, the hemispherical or convex thin valves nerveless. Seeds few or several, in 2 rows, flat. Cotyledons acc.u.mbent.

Filaments toothless.--Low herbs, h.o.a.ry with stellate hairs or lepidote.

Flowers mostly yellow. (Named for _Leo Lesquereux_.)

1. L. globsa, Watson. Minutely h.o.a.ry all over; stems spreading or dec.u.mbent from an annual or biennial root; leaves oblong or lanceolate with a tapering base, repand-toothed or nearly entire; raceme at length elongated, with filiform diverging pedicels; petals light yellow; style filiform, much longer than the small globose, acutish, about 4-seeded pod; seeds marginless. (Vesicaria Shortii, _Torr._)--Rocky banks, Ky.

to Tenn. and Mo. May, June.

2. L. gracilis, Watson. Annual, slender; p.u.b.escence very fine; leaves narrowly oblanceolate; pods glabrous, suberect on ascending or curved pedicels, stipitate; style long. (Vesicaria gracilis, _Hook._)--S. Kan.

to Tex.

3. L. Ludoviciana, Watson. Biennial or perennial; p.u.b.escence compact; leaves linear-oblanceolate, mostly entire; pods p.u.b.escent, pendulous on recurved pedicels; style long. (Vesicaria Ludoviciana, _DC._)--Minn. to Neb. and southwestward.

9. CAMeLINA, Crantz. FALSE FLAX.

Pod obovoid or pear-shaped, pointed, flattish parallel to the broad part.i.tion; valves 1-nerved. Seeds numerous, oblong. Cotyledons inc.u.mbent. Style slender. Flowers small, yellow. (Name from ?aa?, _dwarf_, and ?????, _flax_.)

C. SATVA, Crantz. Annual; leaves lanceolate and arrow-shaped; pods margined, large. A weed in flax-fields, etc. (Adv. from Eu.)

10. SUBULaRIA, L. AWLWORT.

Pod ovoid or globular, with a broad part.i.tion; the turgid valves 1-nerved. Seeds several. Cotyledons long and narrow, inc.u.mbently 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. aquatica, L. Margin of lakes in Maine; Echo Lake, Franconia, N. H.; also in alpine regions of the western mountains. June, July.

(Eu.)

11. NASTuRTIUM, 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 acc.u.mbent.--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. OFFICINaLE, 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._