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2. A. Pitcheri, Torr. & Gray. Leaflets usually 2--4' long; rhachis of the racemes usually villous; calyx 3” long, the teeth ac.u.minate; ovary hairy.--Western N. Y. to Ill., Mo., La., and Tex. The upper flowers more commonly fertile; apparently producing subterranean fruit but rarely.

38. GALaCTIA, P. Browne. MILK-PEA.

Calyx 4-cleft; the lobes acute, the upper one broadest, entire. Keel scarcely incurved. Stamens diadelphous or nearly so. Style beardless.

Pod linear, flat, several-seeded (some few of them rarely partly subterranean and fleshy or deformed).--Low, mostly prostrate or twining perennial herbs. Leaflets usually 3, stipellate. Flowers in somewhat interrupted or knotty racemes, purplish; in summer. (Name from ???a, -a?t??, _milk_; some species being said to yield a milky juice, which is unlikely.)

1. G. glabella, Michx. _Stems nearly smooth_, prostrate; leaflets elliptical or ovate-oblong, sometimes slightly hairy beneath; racemes short, 4--8-flowered; _pods somewhat hairy_.--Sandy woods, southern N. Y. to Va., Fla., and Miss.

2. G. pilsa, Ell. _Stems_ (dec.u.mbent and somewhat twining) and _leaves beneath soft-downy and h.o.a.ry_; leaflets oval; racemes many-flowered, _pods very downy_. (G. mollis, _Gray_, Manual; not _Michx._)--Penn. to Fla. and Miss.

39. RHYNCHSIA, Lour.

Calyx somewhat 2-lipped, or deeply 4--5-parted. Keel scythe-shaped, or incurved at the apex. Stamens diadelphous. Ovules only 2. Pod 1--2-seeded, short and flat, 2-valved.--Usually twining or trailing perennial herbs, pinnately 3-foliolate, or with a single leaflet, not stipellate. Flowers yellow, racemose or cl.u.s.tered. (Name from ??????, _a beak_, from the shape of the keel.)

1. R. tomentsa, Hook. & Arn. _Trailing and twining_, the stem and leaves more or less _p.u.b.escent with spreading hairs_; leaflets 3, _roundish or round-rhombic_, acute or acutish; _racemes_ few-flowered, almost _sessile in the axils_; calyx about as long as the corolla, 4-parted, the upper lobe 2-cleft; pod oblong. (R. tomentosa, var.

volubilis, _Torr. & Gray_.)--Dry soil, Va. to Fla. and Tex.

2. R. erecta, DC. _Erect_, 1--2 high; stem and leaves _more or less tomentose; leaflets 3, oval to oblong_, obtuse or acutish; racemes short and shortly pedunculate. (R. tomentosa, var. erecta, _Torr. & Gray_.)--Del. to Fla. and Miss.

3. R. reniformis, DC. _Dwarf and upright_, 3--8' high; _p.u.b.escence spreading; leaflets solitary_ (rarely 3), _round-reniform_, very obtuse or apiculate; racemes few-flowered, sessile in the axils. (R. tomentosa, var. monophylla, _Torr. & Gray_.)--Va. to Fla. and Miss.

40. CeRCIS, L. RED-BUD. JUDAS-TREE.

Calyx 5-toothed. Corolla imperfectly papilionaceous; standard smaller than the wings, and enclosed by them in the bud; the keel-petals larger and not united. Stamens 10, distinct, declined. Pod oblong, flat, many-seeded, the upper suture with a winged margin. Embryo straight.--Trees, with rounded heart-shaped simple leaves, caducous stipules, and red-purple flowers in umbel-like cl.u.s.ters along the branches of the last or preceding years, appearing before the leaves, acid to the taste. (The ancient name of the Oriental _Judas-tree_.)

1. C. Canadensis, L. (RED-BUD.) Leaves pointed; pods nearly sessile above the calyx.--Rich soil, N. Y. and N. J. to Fla., west to S. Minn., Kan., and La. A small ornamental tree, often cultivated.

41. Ca.s.sIA, Tourn. SENNA.

Sepals 5, scarcely united at base. Petals 5, little unequal, spreading.

Stamens 5--10, unequal, and some of them often imperfect, spreading; anthers opening by 2 pores or c.h.i.n.ks at the apex. Pod many-seeded, often with cross part.i.tions.--Herbs (in the United States), with simply and abruptly pinnate leaves, and mostly yellow flowers. (An ancient name of obscure derivation.)

[*] _Leaflets large; stipules deciduous; the three upper anthers deformed and imperfect; flowers in short axillary racemes, the upper ones panicled; herbage glabrous_.

1. C. Marilandica, L. (WILD SENNA.) Stem 3--4 high; _leaflets 6--9 pairs, lanceolate-oblong, obtuse_; petiole with a club-shaped gland near the base; pods linear, slightly curved, flat, at first hairy (2--4'

long); root perennial.--Alluvial soil, N. Eng. to Fla., west to Mich., S. E. Neb., Kan., and La.

2. C. Tra, L. Annual; _leaflets 3 or rarely 2 pairs, obovate, obtuse_, with an elongated gland between those of the lower pairs or lowest pair; pods slender, 6' long, curved. (C. obtusifolia, _L._)--River-banks, S. Va. to Fla., west to S. Ind., Mo., and Ark.

C. OCCIDENTaLIS, L. Annual; _leaflets 4--6 pairs, ovate-lanceolate, acute_; an ovate gland at the base of the petiole; pods long linear (5'

long) with a tumid border, glabrous.--Va., S. Ind., and southward. (Adv.

from Trop. Amer.)

[*][*] _Leaflets small, somewhat sensitive to the touch; stipules striate, persistent; a cup-shaped gland beneath the lowest pair of leaflets; anthers all perfect; flowers in small cl.u.s.ters above the axils; pods flat; root annual._