LEGUMINOS#-PAPILIONACEZ. 309 
thickened gibbous at back; wings oblong free; keel curved, beaked 
and tapering for a considerable distance at apex. Stamens 9, 10, 
l-adelphous ; tube more or less thickened and fleshy at base; anthers 
of 2 forms; 5 oppositipetalous shorter subglobose versatile, 5 alter- 
nipetalous elongated basifixed. Germen 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’ 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 (Zropical America’). 
158a. Arthroclianthus H. By.\—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. Germen stipitate ; 
ovules «; style slender curved subulate; apex stigmatiferous, not 
thickened. Legume long-stipitate, surrounded at base by persistent 
calyx, linear, much elongated, compressed o-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. Jungh., 210; in Mart. Fl. Bras., Papil., 86, t. 
2 Species 6 or 7. Hoox., Icon, t. 500.—  23.—Watp., Rep., i. 727; Amn., iv. 534. 
BEntH., in Trans. Linn, Soc. xviii. 158; Pl. 3 Adansonia, ix. 296. 
