248 A FLORA OP MANILA 



Pods rather rigid, flat, indihiscent, oblong or strap-shaped, with a distinct 

 wing down one or both sutures. (Greek "memJDrane" from the thin pods 

 of some species.) 



Species about 40, in most tropical countries, about 12 in the Philippines. 



1. Vexillary filament free throughout; flowers solitary on the nodes of the 



inflorescence 1. D. diadelpha 



1. Vexillary filament more or legs united with the others; flowers fascicled 

 on the usually thickened nodes of the inflorescence. 

 2. Leaflets 9 to 13 ; pods 4 to 6 cm long, about 1 cm wide.... 2. D. acandens 

 2. Leaflets "3 to 7; pods 2.5 to 5 cm long, 2 to 3 cm wide.... 3. D. trifoliata 



1. D. diadelpha (Blanco) Merr. (D. sinuata Thwaites). Tibalao, Baga- 



rilao (Tag.). 



A scandent shrub 2 to 8 m high. Leaves 15 to 30 cm long; leaflets 

 large, 7 to 11, oblong to oblong-ovate^ broadly acuminate, 6 to 15 cm long. 

 Panicles about as long as the leaves, pubescent. Flowers numerous, white, 

 about 1.5 cm long, the calyx pubescent. Vexillary fllament entirely free 

 from the others. Pods 4 to 12 cm long, about 2 cm wide, rather hard, 

 narrowly winged down one suture, containing from.l to 4 seeds. (Fl. Filip. 

 pi. 336, D. fiorihunda.) 



In thickets near Caloocan, occasional, fl. Apr .-June; widely distributed 

 in the Philippiijes. Ceylon and India to Indo-China and Malaya. 



2. D. scandens (Roxb.) Benth. 



A scandent shrub 3 to 6 m high, somewhat ferruginous-pubescent or 

 nearly glabrous. Leaves odd-pinnate, about 15 cm long. Leaflets 9 to 

 13, oblong-ovate to elliptic-lanceolate, 2 to 6 cm long, 1 to 2.B- cm wide, 

 apex broadly acuminate, usually retuse. Racemes axillary, few- to many- 

 flowered, longer than the leaves, the flowers usually fasciculate on the 

 very short lateral branches. Calyx dull-purple, somewhat oblique, 3 mm 

 long. Corolla white, about 1 cm long. Pods flattened, lanceolate or oblong- 

 lanceolate, narrowed at both ends, 4 to 6 cm long, about 1 cm wide, with 

 a narrow wing along the dorsal suture, containing from 1 to 3 seeds. (Fl. 

 Filip. pi. 232, Galedupa frutescens.) 



In thickets, Malate, Malinta, etc., fl. June-Sept.; widely distributed in' the 

 Philippines. India to China, Malaya, and northern Australia. 



3. D. trifoliata Lour. (£>. uliginosa Roxb.). 



A scandent glabrous shrub reaching a length of 8 m or less. Leaves 

 10 to 20 cm long; leaflets shining, oblong-ovate, acuminate, 3 to 7, very 

 variable in size, 4 to 13 cm long. Inflorescence of simple, axillary racemes 

 or narrow panicles, 5 to 10 cm long. Flowers white, often tinged with 

 violet, 8 to 10 mm long. Pods subrhomboid to broadly oblong, 2.5 to 5 

 cm long, 2 to 3 cm wide, glabrous, 1- or 2-seeded, prominently veined, 

 with a narrow wing along the upper suture. (Fl. Filip. pi. 161, D. for- 

 steniana.) 



In thickets along the tidal streams, fl. more •or less all the year; along 

 the seashore and tidal streams throughout the Philippines. Tropical Africa 

 and Asia, through Malaya to Australia and Polynesia. 



37. PI SUM Linnaeus 



Annual herbs with equally pinnate leaves, ending in a branched tendrili 

 the stipules large, leaf-like. Flowers white, axillary, solitary, pedieelled! 



