212 FLORA OF TEXAS. 



give them their place in Leguminosae. The legume is of 

 every variety of size and shape. The whole kernel of the 

 seed in an embryo, with thick cotyledons. 



Sich-order, Papilionaceous. 



Tribe I. LoteFe. Corolla papilionaceous ; stamens 10 

 (except Petalostemon) ; legume continuous (not jointed) ; 

 cotyledons leafy in germination ; stems (except Wistaria) 

 not twining, nor climbing. 



* stamens monadelphous ; anthers of i forms. Leaves simple or palmatdy decxirrent. 



Calyx 5-lobed. Legume inflated. Upper stipules decnrrent Cbotalaria. 



2-lipped flattened. Stipules not decurrent Lupinus. 



** Stamens diadelphou^ ; anthers alike. Leaves trifoliolate, rarely palmate or 

 pinnate, the earliest ones alternate. 



Legume membranaceous, curved or coiled, many-seeded. Flowers racemed. 



Medicago. 



coriaceous, straight, rugose or veined, 1^-sceded. Flowers racemed or 



spiked Meuolotus. 



- smooth, membranaccou?, l-4-8eeded. Flowers capitate Tritoixcm. 



straight, many-seeded. Peduncle 1-3-flowered Hosackia. 



*** Stamens monadelphous or diadelphmis. Legume mostly Iseeded and indehis- 

 cent. Plants dotted with small glands. Earlust leaves opposite. 



+ Legume included in the calyx. 



Corolla papilionaceous. Stamens 10, dladelphous ; half of the anthers imperfect. 



Psokalea. 



Stamens 5, united into a cleft tube, and adnate to the claws of four of the regular 

 petals Dalea. 



tt Legume exserted. 



Stamens 10, monadelphous. Wings and keel none Amorpha. 



**** Stamens mostly diadelpTunts. Legume 1, many-seeded, l-celled. 2-vahed. 

 Leaves pinnate. 

 t Trees or shrubs. 



Legume flat and thin, margined on the edge. Trees or shrubs Roeinia. 



nearly terete, coriaceous, contracted between the seeds. Twining shrubs. 



WlSTAKIA. 



