362 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 (Dibrachion’) ; 
standard naked or appendicular on both sides above claw; wings 
oblique; keel-petals valvate behind and slightly coherent, or free 
subimbricate (Dibrachion). Stamens very perigynous unequal free. 
Germen sessile or shortly stipitate in bottom of receptacle; ovules 
2-0; 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’ racemose ; simple 
axillary to upper leaves or branched terminal; bracts and bractlets 
minute, below flower (Zropical America’). 
274. Spirotropis TuL.'—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 «; 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’ in much branched terminal racemes; bracts small 
caducous; bractlets minute, inserted on pedicel (Guiana’).. 
275. Monopteryx Sprucz.’—Receptacle short concave. Calyx 
deeply 5-lobed ; 3 inferior lobes minute connate (as in Cowmarouna) 
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 Tux, in Ann, Se. Nat., sér. 2, xx. 139; in 
Arch. Mus., iv. 102, t. 7. 
2 Whitish or pink. 
3 Species about 7. Benru., in Mart. Fl. 
Bras., Papil., 319, t. 127.—Watp., Rep., v. 
550 (Dibrachion). 
4 In Arch. Mus., iv. 118.—B. H., Gen., 557, 
u, 280.—Vatairea SaG., mss.. in herb. Mus. 
Par. (an AUBL, ?, p. 322, not. 1; 323, not. 
6). 
F Purple. 
© Species 1. S. longifolia.—8. Candollei 
TuL., loc. cit.—Swartzia longifolia DC., Mém. 
Légum., 406 ; Prodr., ii. 423, n. 10. 
7 Ex Benvu., in Mart, Fl. Bras., Papil., 
307, t. 122.—B. H., Gen., 552, n. 261, 
