144 LEGUMINOS^. (PULSR FAMILY.) 



tinitcd. Stamens 10, distinct, declined. Pod oblong, flat, many-seeded, tho 

 iil)lHT .sutiiiv with a win;;ed niar^iiii. Knibryo straij^ht. — Trees, witii rounded- 

 lieart-sliaped !sinii)lc leaves, caducous stipules, and rcd-i)urple flowers in uwihel- 

 likc dusters 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. (Kkd-uhd.) 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 at the base. Petals 5, little une(j[ual, spreading. 

 Stamens .'j-lO, 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 di formed and imperfect: 

 flowers in short axilltiri/ racemes, the upper ones panicled: herliafje glabrous. 



1. C. Marilandica, L. (Wild Sknna.) Ltaflds 6 -9 pairs, lanceolate- 

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

 slightly cui-ved, flat, at first hairy (2' -4') ; root perennial. — Alluvial soil. July. 

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



2. C. occidentXlis, L. Leaflets 4-6 pairs, oudte-lunctolate, acute ; an ovate 

 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.) 



.'5. C. obtusifblia, L. Leaflets 3 or rareti/ 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 Kiver, Illinois (Dr. Vasci/), 

 S. Virginia and southward. 



» * Leaflets small, somewhat sensitive to the touch : stipules striate, persi.ftent : rt nip- 

 shaped gland beneath thn lowest pair of leaflets : anthers all perfect : flowers in 

 small clusters abo'w the axils: pods flat: root annual. 



4. C. Chamseerista, L. (Pautridge Pea.) Leaflets 10-1.") 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 pin-ple spot at the base. 



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

 oblong-linear; flowers (very small) on reri/ .'short pedicels; avthers .5, nenrli/ equal; 

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

 ward. Aug. - Sept. 



35. GYMNOCLADUS, Lam. Kentucky Coffee-tree. 



Flowers dioecious or ])olygam<)us, regular. Calyx elongated-tubular below, 

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



