144 LEGUMINOS^. (pulse FAMILY.) 



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. G. Canadensis, L. (Red-bud.) Leaves pointed ; pods nearly sessile, 

 above the calyx. — Rich soil. New York to Ohio, Illinois, and southward. 

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

 than in the European species. 



34. 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 in short axillary racemes, the upper ones panicled : herbage glabrous. 



1. C. Maril&ndica, L. (Wild Senna.) Leaflets % -'3 pairs, lanceolate- 

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

 slightly curved, flat, at first hairy (2'-4') ; root perennial. — Alluvial soU. July. 

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



2. C. occiDENTiLis, L. Leaflets i - 6 pairs, ovate-lanceolate, acute ; an ovats 

 gland at the base of the petiole ; pods long-linear (5' long) with a tumid border, 

 glabrous. — Virginia and southward. Aug. (Adv. from Trop. Amer.) 



3. C. Obtusifblia, L. 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; root annual. — Banks of the Ohio River, Illinois {Lh: Vasey), 

 S. Virginia and southward. 



» * Leaflets small, somewhat sensitive to the touch: stipules striate, persistent: a cup- 

 shaped gland beneath the lowest pair of leaflets: antliers all perfect: flowers-in 

 snuill clusters above the axils: pods flat: root annual. 



4. C. Chamsecrista, L. (Paktkidge 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) style slender. — Sandy 

 fields : common, especially southward. Aug. — Stems spreading, 1° long : 2 

 or 3 of the showy yellow petals often with a puq:le spot at the base. 



5. C. nictitans, L. (Wild Sensitive-Plant.) Leaflets 10-20 pairs,, 

 oblong-linear ; flowers {very small) on very short pedicels; anthers 5, nearly equal; 

 style short. — Sandy fields, New England, near the coast, to lUinois and south- 

 ward. Aug. - Sept. 



35. GYMNbCIiADUS, Lam. KENxncKT Coffee-tkee. 



Flowers dicecious or polygamous, regular. Calyx elongated-tubular below, 

 5-cleft. Petals 5, oblong, equal, inserted on the summit of the calyx-tube. Sta- 



