1. D. ramosissima, Desv. _Diffusely much branched_ and forming many

radical tufts, perennial (5--8' high), pubescent; _leaves

laciniate-toothed_, linear-lanceolate, the lower oblanceolate, racemes

corymbosely-branched; _pods hairy_, oval-oblong or lanceolate (2--5''

long), on slender spreading pedicels, tipped with a _long

style_.--Cliffs, Harper's Ferry, Natural Bridge, etc., Va., to Kentucky

River, and southward. April, May.

2. D. incana, L. _Hoary-pubescent_, biennial or somewhat perennial, the

radical tuft seldom branching; leaves oblanceolate or the cauline

lanceolate to ovate, few-toothed or entire; _pods oblong to lanceolate,

usually acute and straight, often pubescent_, on short erect pedicels;

style very short or none.--Dry rocks, Willoughby Mountain, Vt.; also

northward and far westward. (Eu.)

Var. arabisans, Watson. Caudex much branched; pod glabrous, acuminate or

acute, twisted, beaked with a longer distinct style. (D. arabisans,

_Michx._)--N. Vt. to western N. Y. and the shores of the upper lakes.

Sec. 2. DRABELLA. _Winter annuals; leafy stems short; flowers white (yellow

in n. 5); style none. (Leaves oblong or obovate, hairy, sessile.)_

3. D. Caroliniana, Walt. Small (1--5' high); leaves obovate, entire;

peduncles scape-like; petals usually twice the length of the calyx;

_raceme short or corymbose in fruit_ (1/2--1' long); _pods broadly linear,

smooth_, much longer than the ascending pedicels.--Sandy and waste

fields, E. Mass. to Minn., and southward. March--May.--Petals often

wanting in the later racemes, especially in the var. MICRANTHA, Gray,

with minutely rough-hairy pods, which is found with the other, westward.

4. D. cuneifolia, Nutt. Leaves obovate, wedge-shaped, or the lowest

spatulate, toothed; _raceme somewhat elongated in fruit_ (1--3'), at

length equalling the naked peduncle; petals emarginate, much longer than

the calyx; _pods oblong-linear, minutely hairy, longer than the

horizontal pedicels_.--Grassy places, Ill. to E. Kan., and southward.

March, April.

5. D. brachycarpa, Nutt. Low (2--4' high), minutely pubescent; _stems

leafy_ to the base of the dense at length elongated raceme; leaves

narrowly oblong or the lowest ovate (2--4'' long), few toothed or

entire; flowers small; _pods smooth, narrowly oblong, acutish_ (2''

long), _about the length of the ascending or spreading pedicels_.--Dry

hills, Ill., Ky., Va. (_A. H. Curtiss_), and southward. April.--Petals

sometimes minute, sometimes none.

6. D. nemorosa, L. Leaves oblong or somewhat lanceolate, more or less

toothed; _racemes elongated_ (4--8' long in fruit); petals emarginate,

small; _pods elliptical-oblong, half the length of the horizontal or

widely-spreading pedicels_, pubescent or smooth.--Fort Gratiot, Mich.,

N. Minn., and westward. (Eu.)

Sec. 3. EROPHILA. _Petals 2-cleft. (Annual or biennial; flowers white.)_

D. VERNA, L. (WHITLOW-GRASS.) 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. ALYSSUM, 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 accumbent. (Greek name of

a plant reputed to check the hiccup, as the etymology denotes.)

A. MARITIMUM, L. (SWEET ALYSSUM), with green or slightly hoary linear

leaves, honey-scented small white flowers, and 2-seeded pods, commonly

cult., begins to be spontaneous southward. (Adv. from Eu.)

A. CALYCINUM, L., a dwarf hoary 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 grassland. (Adv. from Eu.)

8. LESQUERELLA, Watson.

Pod mostly globular or inflated, with a broad orbicular to ovate hyaline

partition nerved to the middle, the hemispherical or convex thin valves

nerveless. Seeds few or several, in 2 rows, flat. Cotyledons accumbent.

Filaments toothless.--Low herbs, hoary with stellate hairs or lepidote.

Flowers mostly yellow. (Named for _Leo Lesquereux_.)

1. L. globosa, Watson. Minutely hoary all over; stems spreading or

decumbent 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; pubescence 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; pubescence compact;

leaves linear-oblanceolate, mostly entire; pods pubescent, 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

partition; valves 1-nerved. Seeds numerous, oblong. Cotyledons

incumbent. Style slender. Flowers small, yellow. (Name from [Greek:

chamai/], _dwarf_, and [Greek: li/non], _flax_.)

C. SATIVA, 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 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. 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 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.)

Sec. 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.)

Sec. 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. SYLVESTRE, R. Br. (YELLOW CRESS.) Stems ascending; _leaves pinnately

parted_, the divisions toothed or cut, lanceolate or linear; pods (1/2'

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. sinuatum, 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._

2. N. sessiliflorum, Nutt. Stems erect, rather simple; _leaves obtusely

incised_ or toothed, obovate or oblong; _flowers minute, nearly

sessile_; pods elongated-oblong (5--6'' long), thick; style very

short.--W. Ill. to E. Kan., Tenn., and southward. April--June.

3. N. obtusum, Nutt. Stems much branched, diffusely spreading; _leaves

pinnately parted or divided_, the divisions roundish and obtusely

toothed or repand; _flowers minute, short-pedicelled; pods longer than

the pedicels_, varying from linear-oblong to short-oval; style

short.--With n. 1 and 2.

4. N. palustre, DC. (MARSH CRESS.) Stem erect; _leaves pinnately cleft

or parted_, or the upper laciniate; the lobes oblong, cut-toothed;

_pedicels about as long as the small flowers and mostly longer than_ the

oblong, ellipsoid, or ovoid _pods_; style short.--Wet places or in

shallow water; common. June--Sept.--Flowers only 1--11/2'' long. Stems

1--3 deg. high.--The typical form with oblong pods is rare. Short pods and

hirsute stems and leaves are common. Var. HISPIDUM is a form with ovoid

or globular pods. (Eu.)

Sec. 3. _Petals white, much longer than the calyx; pods ovoid or globular;

leaves undivided, or the lower ones pinnatifid; root perennial._

5. N. lacustre, Gray. (LAKE CRESS.) Aquatic; immersed leaves

1--3-pinnately dissected into numerous capillary divisions; emersed

leaves oblong, entire, serrate, or pinnatifid; pedicels widely

spreading; _pods ovoid, 1-celled, a little longer than the

style_.--Lakes and rivers, N. E. New York to N. J., Minn., and

southwestward. July--Aug.--Near N. amphibium.

N. ARMORACIA, Fries. (HORSERADISH.) Root-leaves very large, oblong,

crenate, rarely pinnatifid, those of the stem lanceolate; fruiting

pedicels ascending; _pods globular_ (seldom formed); _style very short_.

(Cochlearia Armoracia, _L._)--Roots large and long; a well-known

condiment. Escaped from cultivation into moist ground. (Adv. from Eu.)

12. BARBAREA, R. Br. WINTER CRESS.

Pod linear, terete or somewhat 4-sided, the valves being keeled by a

mid-nerve. Seeds in a single row in each cell, marginless. Cotyledons

accumbent.--Mostly biennials, resembling Nasturtium; flowers yellow.

(Anciently called the Herb of St. Barbara.)

1. B. vulgaris, R. Br. (COMMON WINTER CRESS. YELLOW ROCKET.) Smooth;

lower leaves lyrate, the terminal division round and usually large, the

lateral 1--4 pairs or rarely wanting; upper leaves obovate, cut-toothed,

or pinnatifid at the base; pods erect or slightly spreading; or in var.

STRICTA, appressed; in var. ARCUATA, ascending on spreading

pedicels.--Low grounds and roadsides; apparently introduced, but

indigenous from L. Superior northward and westward. (Eu.)

B. PRAECOX, R. Br. (EARLY WINTER C.), with 5--8 pairs of lateral lobes to

the leaves, and longer pods on very thick pedicels,--yet probably only a

variety of the other,--somewhat cultivated from N. Y. southward as a

winter salad, under the name of SCURVY-GRASS,--is beginning to run wild.

(Eu.)

13. HESPERIS, Tourn. ROCKET.

Pod linear, nearly cylindrical; stigma lobed, erect. Seeds in 1 row in

each cell, oblong, marginless. Cotyledons incumbent.--Biennial or

perennial, with serrate sessile or petiolate leaves, and large purple

flowers. (Name from [Greek: e(spe/ra], evening, from the evening

fragrance of the flowers.)

H. MATRONALIS, L. (DAME'S VIOLET.) Tall; leaves lanceolate, acuminate,

mostly petiolate; pods 2--4' long, spreading.--Sparingly naturalized.

(Nat. from Eu.)

14. ERYSIMUM, Tourn. TREACLE MUSTARD.

Pod linear, 4-sided, the valves keeled with a strong midrib; stigma

broadly lobed. Seeds in 1 row in each cell, oblong, marginless.

Cotyledons (often obliquely) incumbent.--Chiefly biennials, with yellow

flowers; the leaves not clasping. Pubescence of appressed 2--3-parted

hairs. (Name from [Greek: e)ry/o], _to draw blisters_.)

1. E. asperum, DC. (WESTERN WALL-FLOWER.) Minutely roughish-hoary; stem

simple, leaves lanceolate to linear, entire or somewhat toothed; _pods

nearly erect_ or widely spreading _on short pedicels, elongated_ (3--4'

long), exactly 4-sided; stigma 2-lobed.--Ohio (on limestone cliffs) to

Ill., Ark., Dak., and common westward. June, July.--Plant stout, 1--2 deg.

high; the crowded bright orange-yellow flowers as large as those of the

Wall-flower. Petals orbicular, on very slender claws.

2. E. cheiranthoides, L. (WORM-SEED MUSTARD.) Minutely roughish,

branching, slender; leaves lanceolate, scarcely toothed; flowers small;

_pods small and short_ (7--12'' long), very obtusely angled, ascending

on slender _divergent pedicels_.--Banks of streams, Mass. to Penn.,

Minn., and northward. July. (Eu.)

3. E. parviflorum, Nutt. Stem erect, often simple; leaves

linear-oblanceolate, entire or the lowest coarsely toothed; flowers

small (3'' long); pods narrow, 1--21/2' long, ascending on short

pedicels.--Minn. to Kan. and westward.

15. SISYMBRIUM, Tourn. HEDGE MUSTARD.

Pod terete, flattish or 4--6-sided, the valves 1--3-nerved; stigma

small, entire. Seeds oblong, marginless, in 1 or 2 rows in each cell.

Cotyledons incumbent. Calyx open.--Flowers small, white or yellow.

Pubescence spreading. (An ancient Greek name for some plant of this

family.) Ours are mostly annuals or biennials.

1. S. humile, Meyer. Perennial, branching from the base, sparingly

pubescent, 6' high or less; leaves narrowly oblanceolate, mostly

coarsely and sharply toothed; flowers white or rose-color; pods very

narrow, subterete, 4--9'' long, ascending on short pedicels, beaked with

a short style, seeds 1-ranked. (Arabis petraea, _Man._, not

_Lam._)--Willoughby Mountain, Vt.; Canada and westward. (N. Asia.)

2. S. canescens, Nutt. (TANSY MUSTARD.) _Leaves 2-pinnatifid_, often

hoary or downy, the divisions small and toothed; flowers yellowish, very

small; pods in long racemes, oblong-club-shaped or oblong-linear,

shorter than their mostly horizontal pedicels; _seeds 2-ranked_ in each

cell.--Penn. and N. Y. to Lake Superior, thence southward and westward.

June--Aug.

S. SOPHIA, L. A similar hoary species, with decompound leaves; pods

slender, 6--15'' long, ascending; seeds 1-ranked.--Sparingly naturalized

from Europe.

S. OFFICINALE, Scop. (HEDGE MUSTARD.) _Leaves runcinate_; flowers very

small, pale yellow; _pods awl-shaped, close pressed_ to the stem,

scarcely stalked.--Waste places. May--Sept.--An unsightly branched weed,

2--3 deg. high. (Nat. from Eu.)

S. THALIANA, Gaud. (MOUSE-EAR CRESS.) _Leaves obovate or oblong, entire_

or barely toothed; flowers white; pods linear, somewhat 4-sided, longer

than the slender spreading pedicels.--Old fields and rocks, Mass. to

Kan. April, May.--A span high, slender, branched, hairy at the base.

(Nat. from Eu.)

S. ALLIARIA, Scop. Stout, erect; leaves reniform to ovate-cordate,

coarsely repand-dentate; flowers white; pods tapering, 1--2' long,

ascending on very stout spreading pedicels.--Near Georgetown, D. C.

(Nat. from Eu.)

16. THELYPODIUM, Endl.

Pod terete or teretish; valves 1-nerved; stigma mostly entire. Seeds in

1 row in each cell, oblong, marginless. Cotyledons obliquely

incumbent.--Stout biennials or perennials, with mostly large purplish or

white flowers. Leaves or petioles often auricled at base. (Name from

[Greek: the~lys], _female_, and [Greek: pou/s], _foot_, the ovary in

some species being stipitate.)

1. T. pinnatifidum, Watson. Glabrous (1--3 deg. high), often branched above;

root-leaves round or heart-shaped, on slender petioles; stem-leaves

auricled, ovate-oblong and ovate-lanceolate (2--6' long), sharply and

often doubly toothed, tapering to each end, the lower into a winged

petiole, rarely bearing a pair or two of small lateral lobes; flowers

purplish; pods 1--11/2' long, on short diverging pedicels, pointed by a

short style. (Arabis hesperidoides, _Gray_.) Alluvial river-banks, Ohio

to Minn., Mo., and southwestward. May, June.

17. BRASSICA (Brassica and Sinapis), Tourn.

Pod linear or oblong, nearly terete or 4-sided, with a stout 1-seeded

beak or a rigid style; valves 1--5-nerved. Seeds globose, 1-rowed.

Cotyledons incumbent, folded around the radicle.--Annuals or biennials,

with yellow flowers. Lower leaves mostly lyrate, incised, or pinnatifid.

(The Latin name of the Cabbage. Sinapis is the Greek [Greek: si/napi],

which is said to come from the Celtic _nap_, a turnip.)

B. SINAPISTRUM, Boiss. (or SINAPIS ARVENSIS, L., the English CHARLOCK),

with knotty pods, fully one third occupied by a stout 2-edged beak

(which is either empty or 1-seeded), the upper leaves barely toothed, is

a noxious weed in grain-fields, from N. Eng. to Penn. and N. Y.

westward. (Adv. from Eu.)

B. (or SINAPIS) ALBA. (WHITE MUSTARD.) Pods bristly, ascending on

spreading pedicels, more than half its length occupied by the

sword-shaped 1-seeded beak; leaves all pinnatifid; seeds pale. (Cult.

and adv. from Eu.)

B. (or SINAPIS) NIGRA, Koch. (BLACK MUSTARD.) Pods smooth (1/2' long),

4-cornered (the valves only 1-nerved), erect on appressed pedicels

forming a slender raceme, tipped with a stout persistent style; seeds

dark brown, smaller and more pungent than in the last; lower leaves with

a large terminal lobe and a few small lateral ones.--Fields and waste

places. (Adv. from Eu.)

B. CAMPESTRIS, L., in the form of the RUTABAGA and the TURNIP, sometimes

persists a year or two in neglected grounds.

18. CAPSELLA, Medic. SHEPHERD'S PURSE.

Pod obcordate-triangular, flattened contrary to the narrow partition;

the valves boat-shaped, wingless. Seeds numerous. Cotyledons

incumbent.--Annuals; flowers small, white. (Name a diminutive of

_capsa_, a box.)

C. BURSA-PASTORIS, Moench. Root-leaves clustered, pinnatifid or toothed;

stem-leaves arrow-shaped, sessile.--Waste places; the commonest of

weeds. April--Sept. (Nat. from Eu.)

19. THLASPI, Tourn. PENNYCRESS.

Pod orbicular, obovate, or obcordate, flattened contrary to the narrow

partition, the midrib or keel of the boat-shaped valves extended into a

wing. Seeds 2--8 in each cell. Cotyledons accumbent. Petals equal.--Low

plants, with root-leaves undivided, stem-leaves arrow-shaped and

clasping, and small white or purplish flowers. (Ancient Greek name, from

[Greek: thla/o], _to crush_, from the flattened pod.)

T. ARVENSE, L. (FIELD P. or MITHRIDATE MUSTARD.) A smooth annual, with

broadly winged pod 1/2' in diameter, several seeded, deeply notched at

top; style minute.--Waste places; rarely naturalized. (Nat. from Eu.)

20. LEPIDIUM, Tourn. PEPPERWORT. PEPPERGRASS.

Pod roundish, much flattened contrary to the narrow partition; the

valves boat-shaped and keeled. Seeds solitary in each cell, pendulous.

Cotyledons incumbent, or in n. 1 accumbent! Flowers small, white or

greenish. (Name from [Greek: lepi/dion], _a little scale_, alluding to

the small flat pods.)--Ours are annuals or biennials, except the last.

[*] _Leaves all with a tapering base, the upper linear or lanceolate and

entire, the lower and often the middle ones incised or pinnatifid; pods

orbicular or oval, with a small notch at the top; the style minute or

none; stamens only 2._

1. L. Virginicum, L. (WILD PEPPERGRASS.) _Cotyledons accumbent_ and seed

minutely margined; _pod marginless_ or obscurely margined at the top;

petals present, except in some of the later flowers.--June--Sept.

A common roadside weed, which has immigrated from farther south.

2. L. intermedium, Gray. _Cotyledons incumbent_ as in the following;

_pod minutely wing-margined at the top_; petals usually minute or

wanting; otherwise nearly as in n. 1.--Dry places, from western N. Y.

and N. Ill., north and westward.

L. RUDERALE, L. More diffuse, the smaller and oval _pods and the seeds

marginless; petals always wanting_.--Roadsides, near Boston,

Philadelphia, etc.; not common. (Adv. from Eu.)

[*][*] _Stem-leaves with a sagittate partly clasping base, rather

crowded._

L. CAMPESTRE, Br. Minutely _soft downy_; leaves arrow-shaped, somewhat

toothed; _pods ovate, winged_, rough, the style longer than the narrow

notch.--Old fields, Mass. and N. Y. to Va.; rare. (Nat. from Eu.)

L. DRABA, L. Perennial, _obscurely hoary_; leaves oval or oblong, the

upper with broad clasping auricles; flowers corymbose; _pods

heart-shaped, wingless_, thickish, entire, tipped with a conspicuous

style.--Astoria, near New York, _D. C. Eaton_. (Adv. from Eu.)

21. SENEBIERA, DC. WART-CRESS. SWINE-CRESS.

Pod flattened contrary to the narrow partition; the two cells

indehiscent and falling away at maturity from the partition as closed

nutlets, strongly wrinkled or tuberculate, 1 seeded. Cotyledons narrow

and incumbently folded transversely. Low and diffuse or prostrate

annuals or biennials, with minute whitish flowers. Stamens often only 2.

(Dedicated to _J. Senebier_, a distinguished vegetable physiologist.)

S. DIDYMA, Pers. Leaves 1--2-pinnately parted; _pods notched at the

apex, rough-wrinkled_.--Waste places, at ports, E. Mass. to Va., etc.;

an immigrant from farther south.

S. CORONOPUS, DC. Leaves less divided, with narrower lobes; _pods not

notched at the apex, tubercled_.--At ports, R. I. to Va., etc. (Adv.

from Eu.)

22. CAKILE, Tourn. SEA-ROCKET.

Pod short, 2-jointed across, fleshy, the upper joint separating at

maturity; each indehiscent, 1-celled and 1-seeded, or the lower

sometimes seedless. Seed erect in the upper, suspended in the lower

joint. Cotyledons obliquely accumbent.--Seaside fleshy annuals. Flowers

purplish. (An old Arabic name.)

1. C. Americana, Nutt. (AMERICAN SEA-ROCKET.) Leaves obovate, sinuate

and toothed; lower joint of the fruit obovoid, emarginate; the upper

ovate, flattish at the apex.--Coast of the Northern States and of the

Great Lakes. July--Sept.--Joints nearly even and fleshy when fresh; the

upper one 4-angled and appearing more beaked when dry.

23. RAPHANUS, Tourn. RADISH.

Pods linear or oblong, tapering upward, indehiscent, several-seeded,

continuous and spongy within between the seeds, or necklace-form by

constriction between the seeds, with no proper partition. Style long.

Seeds spherical and cotyledons conduplicate, as in Brassica.--Annuals or

biennials. (The ancient Greek name from [Greek: r(ai], _quickly_, and

[Greek: phai/no], _to appear_, alluding to the rapid germination.)

R. RAPHANISTRUM, L. (WILD RADISH. JOINTED CHARLOCK.) Pods necklace-form,

long-beaked; leaves lyre-shaped, rough; petals yellow, turning whitish

or purplish, veiny.--A troublesome weed in fields, E. New Eng. to Penn.

(Adv. from Eu.)

ORDER 11. CAPPARIDACEAE. (CAPER FAMILY.)

_Herbs_ (when in northern regions), _with cruciform flowers, but 6 or

more not tetradynamous stamens, a 1-celled pod with 2 parietal placentae,

and kidney-shaped seeds._--Pod as in Cruciferae, but with no partition;

seeds similar, but the embryo coiled rather than folded. Leaves

alternate, mostly palmately compound.--Often with the acrid or pungent

qualities of Cruciferae (as in _capers_, the flower-buds of Capparis

spinosa).

1. Polanisia. Stamens 8 or more. Pod many-seeded, not or scarcely

stipitate.

2. Cleome. Stamens 6. Pod linear, many-seeded, long stipitate.

3. Cleomella. Stamens 6. Pod very short, rhomboidal, few-seeded,

long-stipitate.

1. POLANISIA, Raf.

Petals with claws, notched at the apex. Stamens 8--32, unequal.

Receptacle not elongated, bearing a gland behind the base of the ovary.

Pod linear or oblong, veiny, turgid, many-seeded.--Fetid annuals, with

glandular or clammy hairs. Flowers in leafy racemes. (Name from [Greek:

poly/s], _many_, and [Greek: a)/nisos], _unequal_, points in which the

genus differs in its stamens from Cleome.)

The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee · 第 8 / 104 段