318 NATURAL HISTORY OF PLANTS. 
receptacle scarcely concave, obtuse at base; disk minute. Legume 
stipitate orbicular membranous, scarcely thickened over seeds ; 
superior suture narrowly winged; style terminal; indehiscent. 
Seeds 2, 3, oblong transverse; embryo straight.—Shrubs ; leaves 
alternate 1-foliolate, usually 2-stipellate; flowers' in axillary or 
lateral, simple or fascicled, racemes. Other characters of Dalbergia 
(Tropical America’). 
172. Drepanocarpus G. A. F. Mzy.’—Flowers of Macheria; sta- 
mens ]-—2-adelphous. Legume reniform or circinate, plano-com- 
pressed, thickly coriaceous, l-seeded indehiscent.—LHrect trees or 
climbing shrubs ; leaves imparipinnate exstipellate ; leaflets usually 
alternate ; stipules small or hardened spinescent ; flowers* in short 
secundifloral racemes fascicled at axils or branched terminal ; bracts 
small caducous; bractlets usually orbiculate persistent (Zropical 
America and Africa’). 
173. Platypodium Voc.'—Flowers almost those of Macherium ; 
receptacle shortly turbinate. Stamens 10, 8 connate into 2 lateral, 
4-androus phalanges; vexillary and lowest nearly or quite free. 
Legume stipitate samaroid, woody at apex, 1, 2-seeded, indehiscent, 
dilated at base into an oblong obliquely-veined wing-like stalk— 
Unarmed tree; leaves pari- or imparipinnate ; leaflets alternate or 
irreguarly opposite ; stipules narrowed subulate or minute ; flowers’ 
in loose racemes at higher axils; bracts and bractlets small caducous. 
(Brazil®). 
174, Tipuana Benru.’—Flowers almost those of Platypodium; 
calyx more elongated or tubular, shortly toothed ; stamens 10, 1, or 
1 Middle-sized. 
2 Species 4. Benru., in Journ. Linn. Soc., 
iv. Suppl., 51; in Mart. Fl. Bras., Papitl., 229, 
t. 66. 
3 Primit, Fl. Essequeb., 236. — GuRTN., 
Fruct., ii. 351 (part.), t. 156 (Péerocarpus).— 
DC., Prodr., ii. 420 (part.).—ENDL., Gen., n. 
6709.—B. H., Gen., 546, n. 240.—Orucaria 
Cuivs., Exot., 47, 48 (ex ENDL.).—Sommerfeldtia 
Sonum. & THony., Beskr., 331.— Nephrosis 
L. C. Ricw., mss. (ex ENDL). 
4 Purple, violet, or white. 
5 Species 8. H. B. K., Nov. Gen. et Spec. 
vi. 390.—BentH., in Ann. Wien. Mus., ii. 95 ; 
in Mart. Fl. Bras., Papil., 257, t. 81-85; in 
Journ. Linn. Soc., iv. Suppl., 69.—Baxer, in 
Oliv. Fl. Trop. Afr., ii. 237.—H. By., in Adan- 
sonia, vi. 218, 
5 In Linnea, xi. 420.—B. H., Gen., 546, n. 
242.—Callisemea BrNtH., in Ann. Wien. Mus., 
ii. 105.—Enb1., Gen., n. 6721. 
7 Handsome, rather large, yellow. 
8 Species 2. Benru., in Journ. Linn. Soce., 
iv. Suppl., 72; in Mart. Fl. Bras., Papil., 261, 
t. 87, 88. 
9° In Journ, Linn, Soc., iv. Suppl.,72.—B. H., 
Gen., 546, n. 241. 
