LEGUMINOSAE 239 



2. Petioles broadly winged 8. D triquetrum 



2. Petioles .not winged. 



3. Leaflet ovate to oblong-ovate, narrowed to the acute or acuminate 

 apex. 

 4. Petioles less than 5 mm long; racemes rather dense; pods pub- 

 escent. 9. D. virgatum 



4. Petioles 1 to 2.5 cm long; flowers laxly disposed; leaves gray- 

 pubescent beneath; pods nearly glabrous 10. D. gangetieum 



3. Leaflet 6rbicuIar-ovate to orbicular, obtuse or rounded. 



11. D. laaiocarpum 



1. D. PUCHBLLUM (L.) Benth. Payang-payang (Tag.). 



An erect undershrub 0.6 to 1.5 m high. Leaves 3-foliolate; leaflets 

 finely pubescent beneath, the terminal one oblong, 8 to 13 cm long, more 

 than twice as large as the two lateral ones. Inflorescence terminal and 

 axillary, 8 to - 25 cm long, the flowers umbellate or fascicled, hidden by 

 the distichous, orbiculair bracts which are 1 to 1.5 cm in diameter. Flowers 

 white; about 6 Java. loilg. Pods oblong, pubescent, usually of 2, rarely 

 of 1 or 3 joints. 



In open dry grass lands and thickets, fl. Oct.-Jan.; widely distributed 

 in the Philippines, probably introduced. Tropical Asia to the Mascarene 

 Islands, Malaya, New Guinea, and Polynesia. 



2. D. quinquepetalum (Blanco) Merr. Payispis, Baquisquis (Tag.). 



An erect branched shrub or small tree 2 to 7 m high, nearly glabrous 

 or somewhat pubescent. Leaves 3-foli61ate; leaflets oblong-ovate to lan- 

 ceolate-ovate, sharply acuminate, prominently, nerved, 3 to 9 . cm long. 

 Inflorescence paniculate, terminal and axillary, 10 to 35 cm long, pubescent, 

 the flowers in racemosely arranged 2- to 7-flowered umbels. Flowers white, 

 fragrant, 1.5 cm long, very numerous. Pods oblong, curved, consisting 

 of from 3 to 6 joints. 



In thickets Masambong, Fort McKinley, etc., fl. Sept.-Nov.; widely 

 distributed in Luzon. Endemic. 



3. D. SCOKPIUBUS (Sw.) Desv. 



A prostrate or ascending, slender, often widely spreading, somewhat 

 hirsute annual. Leaves 3-foliolate, the leaflets elliptic to oblong-elliptic, 

 rounded, 1.5 to 3.5 cm long, the terminal one larger than the lateral ones. 

 Racemes terminal, slender, distantly few-flowered. Flowers pale-purplish, 

 about 4 mm long. Pods slender, green, 2 to 5 cm long, less than 2 mm 

 wide, pubescent, of from 3 to 8 joints, which are much longer than wide, 

 scarcely constricted between the joints. 



In open dry places, old walls, cliffs, etc., fl. all the year; widely distrib- 

 uted in the Philippines. A native of tropical America; introduced and 

 naturalized here and in Polynesia, but not reported from any bther part 

 of the Orient.. 



4. D. PKOCUMBBNS (Mill.) A. S. Hi'tchc. (D. apirale DC). 



An erect, nearly or quite glabrous, slender, annual herb 0.5 to 1.5 m 

 high. Leaves petioled, 3-foliolate; leaflets ovate-oblong to lanceolate, ob- 

 tuse, 1 to 6 cm long, the terminal one longer than the lateral ones. Racemes 

 axillary and terminal, lax, slender, 8 to 20 cm long. Flowers usually in 

 scattered pairs, yellowish-green, about 2.5 mm long, their pedicels long 

 and slender. Pod 1 cm long or less, slender, 4 to 6-jointed, spirally twisted, 

 the joints about as long as broad. 



