LEGUMINOSAE 247 



2. P. eehinatua Pers. Narra (Tag.); Naga (Vis.). 



Very similar to the preceding, differing in that part of the pod opposite 

 the seeds being covered with slender, spreading, straight spines. 



A few trees in Singalon, fl. June-July; widely distributed in the Phil- 

 ippines. Celebes. 



S4. DALBERGIA Linnaeus fils 



Climbing shrubs or erect trees. Leaves odd-pinnate; leaflets alternate. 

 Flowers small, numerous, in terminal or axillary panicles. Calyx cain- 

 panulate, with 5 short teeth. Corolla exserted; standard broadj keel obtuse, 

 its petals joined at the tip. Stamens 9 or 10, monadelphous, or the sheath 

 slit down one side. Ovary stalked, few-ovuled; style short, curved, gla- 

 brous. Pod oblong or strap-shaped, usually thin and flat, 1- to 4-seededj 

 indehiscent, sutures not winged. (In honor of N. Dalberg, a Danish phys- 

 ician.) 



A large genus of wide distribution iit the tropics, 6 or 7 in the Philippines. 



1. D. ferruglnea Roxb. 



A climbing shrub reaching a height of several meters, the younger parts 

 brown-pubescent, often becoming nearly glabrous when old. Leaves 10 to 

 20 cm long; leaflets 15 to 21, elliptic-oblong or oblong, apex rounded or 

 retuse, base slightly oblique, 1.6 to 4 cm long. Panicles axillary and tei:- 

 minal, forming a leafy inflorescence. Flowers pink, white, or yellowish, 

 about 6 to 7 mm long. Pods 3 to 7 cm long, 1.6 cm wide or less, 1- to 3- 

 seeded, stalked, oblong to strap-shaped, the parts opposite the seeds thick- 

 ened, the other parts thin. 



In thickets, Masambong, fl. March-June; widely distributfed in the Phil- 

 ippines. Borneo to New Guinea and the Caroline Islands. 



35. PONGAMIA Ventenant 



Glabrous trees with odd-pinnate leaves, the flowers in axillary racemes. 

 Calyx campanulate or cup-shaped, truncate or subtruncate. Corolla ex-' 

 serjedr^the standard broad, the keel obtuse. Stamens inonadelphous, the 

 upper filaments free nearly to the base. Ovary 2-ovule'd; style incurved! 

 Pod woody, flattened, oblong, indehiscent, not winged or thickened along the 

 margins. (From its Indian name.) 



A single variable species. 



1. P. mitis (L.) Merr. (P. glabra W eat.) . Balic-balic (Tag.). 



A tree 8 to 25 m high, glabrous throughout. Leaves 20 to 25 cm long; 

 leaflets 5 to 7, ovate to oblong-ovate, acuminate, 6 to 16 cm long, the 

 terminal one larger than the others. Rac^emes in the upper axils, 15 to 20 

 cm long. Flowers numerous, purplish, pink or nearly white, about 1.5 cm 

 long. Pod woody, glabrous, oblong, 5 to 7 cm long, 5 to 8 mm thick, shortly 

 beaked at the apex. (Fl. Filip. pi. il7.) 



Along tidal streams and near the sea, fl. Oct., and probably in other 

 months; throughout the ^Philippines in similar habitats. India to the 

 Seychelles, Malaya, Australia, and Polynesia. 



36. D ERR IS Loureiro 



Scandent or more rarely erect shrubs or small trees. Leaves odd-pinnate, 

 the leaflets not stipellate. Inflorescence of axillary and terminal racemes 

 or panicles. Calyx nearly truncate. Corolla much exserted. Stamens 

 usually monadelphous or the upper one free. Ovary sessile, few-ovuled. 



