322 NATURAL HISTORY OF PLANTS. 
racemose ; racemes axillary simple or subfascicled at extremities of 
twigs ; bracts caducous ; bractlets minute or 0’ (Zropical America’). 
180. Coumarouna Avsu.'—Receptacle cupuliform, lined by a 
disk. Calyx gamosepalous ; lobes 5, very unequal ; 2 superior equal 
to each other, valvate large wing-like subcoriaceous ; 3 inferior very 
small, rather thick, connate into a 3-toothed or subentire lip. Pe- 
tals very dissimilar ; standard broadly obovate, orbicular, or ovate, 
emarginate 2-fid; wings oblong or falcate, oblique, often 2-fid or 
emarginate ; petals of keel nearly similar to wings, free or dorsally 
cohering. Stamens 10, l-adelphous; filaments connate into a 
sheath longitudinally cleft above; anthers versatile; 5 alternate 
often shorter or abortive. Germen supported on a compressed stalk ; 
ovule 1, descending ; style slender, inflexed or curved ; apex minutely 
capitate stigmatiferous. Fruit drupaceous ovoid, rather compressed ; 
endocarp woody, very thick, indehiscent (or subdehiscent ?), 1-seeded. 
Seed descending; radicle short, nearly straight.—Trees; leaves 
opposite or alternate, subparipinnate ; leaflets opposite or alternate ; 
rachis often narrowly winged; stipules minute or 0; flowers‘ in 
compound much branched terminal racemes ; bracts small caducous ; 
bractlets larger, nearly similar to large sepals, often valvate in- 
closing younger buds, caducous (Zropical America’). 
181. Pterodon Voc.'’—Flowers of Coumarouna; 2 sepals large 
wing-like membranous petaloid, closely valvate. Corolla and 1- 
adelphous stamens of Cowmarouna; anthers uniform. Germen stipi- 
tate or more rarely subsessile (of Cowmarouna). Fruit drupaceous, 
ovate or oblong, flattened, more or less oblique; sarcocarp thin oily ; 
endocarp woody, separating from exocarp on maturity, tapering all 
1 This genus ought rather to be considered a 
-section of Andira. 
2 Species 4 or 5. Jacg., Amer., 207.— 
H. B. K., Nov. Gen. et Spec., vi. 879.—H. B., 
Plant. Ziquin., ii. 69, t. 100.—Bentu., in Hook. 
Journ, ii. 69; in Journ. Linn. Soe., iv. Suppl., 
1283; in Mart. Fl. Bras., Papil., 299, t. 117. 
3 Guian., 740, t. 296 (1775).—J., Gen., 364.— 
-H. By., in Adansonia, ix. 214.—Cuwmaruna 
Lamx., iL, t. 601.— Baryosma GzRtN., Fruct., 
ii, 78, t. 93.—PzErs., Syn, ii. 278.—Henizia 
Scopr., Introd., nu. 1270 (1777).—Taralea AvBL., 
op. cit., 745, t. 298.—Bolducia Nucx., Elem., 
n. 1842.—Dipteryx ScHREB., Gen., 845 (1789- 
91).—DC., Prodr., ii. 477.—Spacu, Suit. & 
Buffon, i. 141.—Ewvu., Gen., n. 6728.—B. H,, 
Gen., 551, n. 257. 
4 Violet or pink, often handsome. 
° Species 8. Bunru., in Ann. Wien. Mus., 
ii. 110; in Hook. Journ., ii. 235; in Journ, 
Linn, Soe., iv. Suppl., 124; in Mart. Fl. Bras., 
Papil., 300, t. 118, 119.—Tun., in Arch. Mus., 
iv. 100. 
6 In Linnea, xi. 384.—EnD., Gen., 0. 6730.— 
B. H., Gen., 551, n. 258.—Commilobium BENTH., 
a a Wien, Mus,, ii, 110.—Enpu., Gen., u. 
