294 ORDER XLIII. LEGUMINOS^. 



Ovary stipitate, linear, pubescent. Legume 4 — 6-seeded. In- 

 florescence terminal. 



1. C. tincto'ria, (Raf.) A tree with yellow wood. Leaves pinnate ; 

 leaflets 7 — 11, usually alternate, broadly oval, the terminal one rhom- 

 boid ovate. Flowers resembling the locust. Legumes flat. — White. ^ . 

 "West Tennessee. 20 — 40 feet. Yellow-wood. 



Genus XLV.— CER'CIS. L. 10—1. 

 (From the Greek kerkis, a shuttlecock ; a name given by Theophrastus.) 



Calyx 5-toothed, campanulate, gibbous at the base. Petals 

 distinct ; vexillum smaller than the wings ; keel larger than the 

 wings, composed of two distinct petals. Stamens distinct, un- 

 equal. Legume compressed, many-seeded, oblong, acute, on a 

 short stipe. Trees with simple leaves, flowering before putting 

 forth leaves. 



1. C. Canadensis, (L.) A small tree, with smooth bark, and some 

 what geniculate branches. Leaves broad-cordate, acuminate, villous 

 along the veins beneath. Flowers in axillary racemes. Calyx pubes- 

 cent at the margin. One of the most ornamental trees of our forests. — 

 Rose-color. ^ . March. Common. 15 — 20 feet. 



Red-bud. Judas-tree. 



Tribe IX.— OAS'SIE^E. 



Corolla not papilionaceous, but generally irregular. Stamens 

 usually 10, distinct. Legume continuous. Leaves pinnate or 

 bi pinnate. 



Genus XLVI— CAS'SIA. L. 10—1. 

 (The name given by Dioscorides.) 



Calyx 5-sepaled; sepals slightly united at the base, generally 

 unequal. Petals 5, unequal. Stamens unequal, the three upper 

 sterile. Legume ligneous, terete, or compressed, sometimes 

 with several transverse partitions. Mostly annual plants, with 

 pinnate leaves. 



1. C. to ra, (Walt.) Stem glabrous, or slightly sprinkled' with hair, 

 branching. Leaflets in 3 pairs, obovate, obtuse, slightly mucronate, a 

 little pubescent on the under surface when young, a gland between the 

 lower pair. Stipules ciliate. Sepals obtuse, ciliate, 5-nerved. Petals 

 emarginate, 3-nerved, obovate. Stamens shorter than the petals, un- 

 equal. Anthers dehiscing by two pores at the apex. Legume compressed 

 or terete, many-celled by transverse partitions, long. Seeds numerous, 

 reniform. — Yellow. 0. Aug. — Oct. Common. 3 — 4 feet. 



C. obtusifolia, L. 



2. C. occidenta'lis, (L.) Stem erect, glabrous, branching, or simple. 

 Leaflets in 5 pairs, occasionally 3 or 6 pairs, ovate or ovate-lanceolate, 

 slightly ciliate, acuminate, unequal at the base, and serrulate ; gland at 

 the base of the petiole. Flowers in axillnry racemes, few. Legumes 

 long, glabrous, many-seeded. Seeds compressed, nearly oval. — Yellow. 

 July — through the summer. 4 — 6 feet. Styptic-weed. 



