114 LEGUMINOSJE. (PULSE FAMILY.) 



Suborder II. C.rsALI'I.MK.-E. Brasiletto Family. 



42. CERCIS, L. Rkd-bud. 



Calyx campanulatc, 5-toothcd. Petals all distinct, the vexillum shorter than 

 the wings. Stamens 10, distinct Legume oblong, eompressed, many-seeded ; 

 the upper suture winged. — Trees, with broadly-cordate simple stipulate leaves, 

 and reddish-purple clustered flowers appearing before the leaves. 



1. C. Canadensis, L. — Rich soil, Florida to Mississipi, and northward. 

 February and March. — Tree 15° -20° high. Flowers very numerous, from 

 lateral buds. 



43. CASSIA, L. Senna. 



Calyx of 5 nearly distinct sepals. Petals 5, unequal. Stamens 5- 10. An- 

 thers mostly of different forms, opening by two terminal pores. Legume many- 

 seeded. Seeds often separated by cross partitions. — Herbs or shrubs. Leaves 

 abruptly pinnate. Flowers yellow. 



* Stamens 10, unequal : part of the anthers abortive : sepals obtuse : stipules 



deciduous. 



1. C. OCCidentalis, L. Annual, smoothish ; stem stout, brandling ; leaf- 

 lets about 10, ovate or ovate-lanceolate, acute ; petiole with a globular gland at 

 the base; racemes 2-4-flowered, the upper ones crowded. — Waste places, com- 

 mon. — Stem 1° -5° high. Legume linear, erect, compressed, slightly curved, 

 3' -4' long. 



2. C. obtusifolia, L. Annual, roughish ; stem slender, leaflets 6, cune- 

 ate-obovate, with a tooth-like gland between the lowest pair ; flowers by pairs ; 

 legume narrow-linear, 4-angled, recurved. — Waste places, Florida to North 

 Carolina, and westward Stem l°-4° high. Legume 6'-10'long 



3. C. Marilandica, L. Perennial, smoothish; leaflets 12-18, oblong, 

 acute ; petiole with a club-shaped gland near the base ; racemes several flowered, 

 the upper ones crowded, forming a compact panicle ; legume linear, slightly 

 curved. — Rich soil, Florida to Mississippi, and northward August. — Stem 

 3° - 4° high. Legume 3' - 4' long. 



4. C. angustisiliqua, Lam.? Smooth or nearly so; stem branched , 

 leaflets 6-10 oblong, mucronate, very oblique at the base, hairy at tin' !.a-<- 

 beneath, with a globular gland on the petiole or between the lowest pair of leaf- 



Qowers in a terminal panicle, on slender pedicels ; Bepals oblong-obovate ; 

 petal, yellow, veiny ; perfect anthers oblong, the larger ones curved; legume 



(.'{'-4' long) broadly linear, Hat, Straight or somewhat falcate, niatiy-sei d( d 



— South Florida. Feb. — Leaflets 9" -12" long. Legumes i ' wide. 



• r ). C. biflora, L. Shrubby; leaflets 4 - 10, oblong, narrowed at the base, 

 mucronate, with an obovoid gland between the lowest pair; racemes 8 4-flow- 



i red, often by pairs, slender, Bhorter than the leave- ; fertile anthers 5 ; logi 



linear, Hat, straight or somewhat falcate, smooth, many seeded — Key West. — 

 Leaflets r long Legume •'!' long, 2" wide. 



