Ordek 46.— leguminous PLANTS. 



195 



p Lvs. pinn'ly 3-fol., stipellate. Pod 3-7-jointed. Tick Trefoil. Des^o'dium. 



p Lvs. pina'ly 3-fol. Stipcls none. Pod 1-jointed. Buih Trefoil. Lkspedk'za. 7 



q Leaves palinately 4-tbliate. Stamens all united. Zoh'nia. 



Leaves pinnate, 7-49- foliate. Stamens 9 united. ^EscHYNOJi'iiNE. 



Leaves pinnately 3-foliate. Pod slender at base. Stvlosan'thks. 



Leaves pinnately 4-foliate. ^od cribbous at base. Peanut. Ar'achis. 



r Leaflets serrate. Pods 2-seeded. GJdck Pea. Cicer. 



r Leaflets entire. Style grooved outside, hairy inside. Pea. PisuM. 8 



r Leaflets entire. Style flattened, hairy most inside. Sweet Pea. LATn'YRUS. 12 



r Leaflets entire. Style filiform, hairy most outside. Vetch. Vic'ia. 13 



s Podlegumeflat and thin, short-stiped. Lvs. pinnate. Tree. S.W. Cladas'tris. 

 s Pod inflated, stipitate (stalked at base). Lvs. 1-3-foliate, Baptis'ia. 9 



t Fls. perfect, purple, papilionaceous. Tree. Lvs, simple. Judas-tree. Cercis. 



t Fls. perfect, yellow. Lvs. equally pinnate. Senna. Cassia. 10 



t Fls. imperfect, green. Sta. 5. Trees thorny. Honey Locust. Gledits'chia. 



t Fls. imp., greenish. St. 10. Trees unarmed. Ky. Coffee-tree. Gymnoc'ladus. 

 u Pods flat, jointed between the seeds. Shrubby. Sensitive Plant. Mimo'sa. 

 u Pods prickly, 4-sided, 4-valved. Sensitive Brier. Schran'kia. 



u Pods smooth, turgid, filled with pulp. Tree. S. Sponge-tree. Vachel''lia. 

 n Pods smooth, flat, dry. Petals distinct. Stani. 5-10. Herbs. Desman^thus. 

 u Pods smooth, flat, dry. Petals united. Stam. S-200. S. Julibragsin. Aca'cia. 



1. PHASE'OLUS. Bean, &c. 



Calyx 5-toQthed or cleft, the 2 

 upper teeth half united. Keel in- 

 cluding the stamens and style, and 

 with them spirally coiled or twisted. 

 Legume straight or curved, many- 

 seeded. Seeds oblong, kidney- 

 shaped. — Herbs twining or trailing. 

 Leaves pinnately trifoHate, stipellate. 

 Juner-Oct. 



* Native species, growing in fields and 



woods a 



■ Exotic species, growing only by culti- 

 vation b 



a Flowers racemed. Pods curved 1 



a Flowers 1 or few in a head. Pods straight. 



b Stems climbing 5-7 



b Stems erect, bushy 8 



Fig. 446. Section of flower of the Beun, 

 showing tlie spirally coiled stamens Riid styles 

 the simple ovary, ifcc. 



.2-4 



