108 LEGTJMINOS.E. (PULSE FAMILY.; 



lete. Base of the petioles hollow, and enclosing the leaf-buds of the next year. 

 Bracts minute and fugacious. (Name of obscure derivation.) 



1. C. tinctdria, Raf. (Virgilia lutea, Michx. f.) Rich hill-sides, E. 

 Kentucky and Tennessee. May. — Racemes 10' -20' long. Flowers 1' long. 



Suborder II. CJESAXPINIEa:. Tup Brasiletto Family. 



SI. CERCIS, L. Red-bod. 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, rather unequal. Pod oblong, flat, many-seeded, 

 the upper suture with a winged margin. Embryo straight. — Trees, with 

 rounded-heart-shaped simple leaves, deciduous stipules, and red-purple flowers 

 in little umbel-like clusters along the branches, appearing before the leaves, acid 

 to the taste. (The ancient name of the Oriental Judas-tree.) 



1. C. Canadensis, L. (Bed-bud.) Leaves pointed; pods nearly 

 sessile above the calyx. — Rich soil, New York to Ohio, Kentucky, and south- 

 ward. March -May. — A small ornamental tree, often cultivated : the blossoms 

 smaller than in the European species. 



32. CASSIA, L. Senna. 



Sepals 5, scarcely united. Petals 5, unequal, not papilionaceous, 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.) 



* Leaflets large : stipules deciduous : the 3 upper anthers deformed and imperfect : 



flowers crowded in short axillary racemes, the upper ones panicled. 



i. C. Ularilamtica, L. (Wild Senna.) Leaflets 6-9 pairs, lanceo- 

 late-oblong, obtuse ; petiole with a club-shaped gland near the base ; pods linear, 

 slightly curved, flat, at first hairy (2' -4'). y. — Alluvial soil, common. July. 

 — Stem 3° - 4° high. Leaves used as a substitute for the officinal Senna. 



2. C. OCCiDENTALis, L. Leaflets 4 - 6 pairs, ovate-lanceolate, acute or point- 

 ed; an ovate gland at the base of the petiole; pods elongated-linear (5' long) 

 with a tumid border, glabrous. Q) )\. ? — Virginia and southward. Aug. 

 (Adv. from Trop. Amer.) See addend. 



# * 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 clusters above the axils : pods flat. 



3. C ClianiyecriSta, L. (Partridge Pea.) Leaflets 10-15 pairs, 

 linear-oblong, oblique at the base; flowers (large) on slender pedicels ; anthers 10, 

 elongated, unequal (4 of them yellow, the others purple); st}de slender, (£ — 

 Sandy fields; common, especially southward. Aug. — Stems spreading, l c 

 long : 2 or 3 of the showy yellow petals often with a purple spot at the base. 



