1. G. glabélla, 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. pilòsa, Ell. _Stems_ (decumbent and somewhat twining) and _leaves beneath soft-downy and hoary_; leaflets oval; racemes many-flowered, _pods very downy_. (G. mollis, _Gray_, Manual; not _Michx._)--Penn. to Fla. and Miss. 39. RHYNCHÒSIA, 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 clustered. (Name from ῥύγχος, _a beak_, from the shape of the keel.) 1. R. tomentòsa, Hook. & Arn. _Trailing and twining_, the stem and leaves more or less _pubescent 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. erécta, 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. renifórmis, DC. _Dwarf and upright_, 3--8´ high; _pubescence 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. CÉRCIS, 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 clusters 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. Canadénsis, 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. CÁSSIA, 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 chinks at the apex. Pod many-seeded, often with cross partitions.--Herbs (in the United States), with simply and abruptly pinnate leaves, and mostly yellow flowers. (An ancient name of obscure derivation.)