LEGTJMIN0S2E-PAPILI0NAGEJE. 309 



thickened gibbous at back ; wings oblong free ; keel curved, beaked 

 and tapering for a considerable distance at apex. Stamens 9, 10, 

 1 -adelphous ; tube more or less thickened and fleshy at base ; anthers 

 of 2 forms ; 5 oppositipetalous shorter subglobose versatile, 5 alter- 

 nipetalous elongated basifixed. Grermen subsessile pauciovulate, 

 afterwards (receptacle becoming elongated rigid reflexed) stipitate, 

 and wreathed by a stigma-like neck after fall of style ; style long 

 filiform before anthesis ; apex stigmatiferous, not dilated. Legume 

 (ripening underground) oblong thick reticulated subtorulose, some- 

 what constricted between seeds, not reticulated, continuous within, 

 indehiscent. Seeds few, unevenly ovoid ; embryo exalbuminous, 

 very fleshy oily ; cotyledons plano-convex, very thick, subauriculate 

 at base ; radicle short. — Low or often prostrate herbs ; leaves either 

 paripinnate, leaflets 2- or pauci-jugate, or more rarely 3-foliolate ; 

 stipules 2, lateral adnate to base of petiole ; flowers 1 either in dense 

 axillary spikes, or solitary or few axillary, sessile or pedicellate ; 

 bract often 2-auriculate ; bractlets 2, linear, inserted at a variable 

 height on floral receptacle {Tropical America 2 ). 



1 53a. Artliroclianthus H. Bn. 3 — Flowers papilionaceous ; recep- 

 tacle short concave, lined by a cupuliform disk. Calyx gamosepa- 

 lous subcampanulate, obtusely 4- or 5-toothed. Corolla nearly of 

 Clianthus (or Chadica) ; standard shorter than wings, subovate, 

 usually acute at apex, shortly unguiculate, reflexed ; wings with 

 longer claws, falcate, acute or acuminate, adhering to keel ; keel 

 longer, arched, acutely beaked at apex ; petals with very long claws, 

 cohering valvately below. Stamens 10, 2-adelphous (9-1); anthers 

 oblong, inserted dorsally above base, subversatile. (xermen stipitate ; 

 ovules cc ; style slender curved subulate ; apex stigmatiferous, not 

 thickened. Legume long- stipitate, surrounded at base by persistent 

 calyx, linear, much elongated, compressed co-jointed ; segments 

 glabrous submembranous, narrowed at both ends, 1 -seeded ; last 

 segment apiculated by style. Seeds (when unripe) subreniform 

 descending, narrowed for a considerable distance below. — A shrub ; 

 leaves alternate pinnate 3-foliolate ; leaflets petiolulate ; stipules 



1 Yellow or whitish. Junah., 210; in Mart. Fl. Bras., Papil., SG, t. 



8 Species 6 or 7. Hook., Icon., t. 500.— 23.— Walp., Sep., i. 727 ; Ann., iv. 534. 

 Bentu., in Trans. Linn. Soc, xviii. 158; PI. 3 Adamonia, is. 2 l Ju\ 



