S62 NATURAL HISTORY OF PLANTS. 



within; mouth oblique. Calyx-teeth or lobes unequal in length, sub- 

 valvate ; 2 superior higher connate longer recurved. Corolla nearly of 

 Ormosia ; petals flat rather thick or crisp corrugated {Dibrachiorf) ; 

 standard naked or appendicular on both sides above claw ; wings 

 oblique; keel-petals valvate behind and slightly coherent, or free 

 subimbricate {Dibr addon). Stamens very perigynous unequal free. 

 Germen sessile or shortly stipitate in bottom of receptacle ; ovules 

 2- oo ; style incurved ; stigma small terminal or oblique. Legume 

 ovate or oblong, compressed, coriaceous or woody, rather late 2-valved. 

 Seeds 1 or few, unequally ovate or suborbicular, compressed ; embryo 

 thick ; radicle straight short. — Trees ; leaves imparipinnate ; leaflets 

 coriaceous exstipellate ; stipules small, flowers 2 racemose ; simple 

 axillary to upper leaves or branched terminal ; bracts and bractlets 

 minute, below flower {Tropical America?). 



274. Spirotropis Tul. 4 — Calyx tubular, finally splitting unevenly ; 

 teeth 5, connate into two unequal lips ; superior lip 2-, inferior 3- 

 toothed. Petals shortly unguiculate ; standard obovate elliptical ; 

 wings oblong shorter than standard ; keel-petals subsimilar to wings, 

 finally convolute; stamens 10, free unequal; anthers linear-elon- 

 gated subbasifixed. Germen subsessile ; ovules co ; obliquely de- 

 scending; style slender; apex minutely stigmatiferous. "Legume 

 oblong, acute at both ends, flat wingless. Seeds .... ?" — A tree ; 

 leaves imparipinnate ; leaflets paucijugate coriaceous ; stipules fo- 

 liaceous ; flowers 5 in much branched terminal racemes ; bracts small 

 caducous; bractlets minute, inserted on pedicel {Guiana 6 ). 



275. Monopteryx Spruce. 7 — Eeceptacle short concave. Calyx 

 deeply 5-lobed ; 3 inferior lobes minute connate (as in Coumarouna) 

 into a short 3-toothed lip ; 2 superior connate into a very large lip 

 plicate and including corolla. Petals subsessile ; standard obovate ; 

 wings oblong ; keel-petals like wings, connate behind from base to 



1 Tul., in Ann. Sc. Nat., ser. 2, xx. 139 ; in Tar. (an Aubl. ?, p. 322, not. 1 ; 323, not. 

 Arch. Mtis., iv. 102, t. 7. 6). 



2 Whitish or pink. 5 p ur p] e _ 



3 Species about 7. Benth., in Mart. Fl. * Species 1. S. longifolia.—S. Candollei 

 Bras., Papil., 319, t. 127.— Walp., Rep,, v. Tcl., he. cit.—Swartzia longifolia DC, Mem. 

 550 (Dibrachion). Legum., 406 ; Prodr., ii. 423, n. 10. 



4 In Arch. Mus., iv. 113.— B. H., Gen., 557, J Ex Benth., in Mart. Fl. Bras., Papil., 

 n. 280.— Vatairea Sag., mss., in herb. Mus. 307, t. 122.— B. H., Gen., 552, n. 261. 



