ENUME1{AT10^• OF THILirPINE LEGUMINOSAE. 105 



Scandent, glabrous except the inflorescence. Leaflets 5 to 7, narrowly 

 ovate to oblong-lanceolate, 7 to 13 cm long, 2.5 to 4.5 cm wide, base 

 rounded or acute, the apex strongly subcaudate-acuminate, the acumen 

 blunt. Eacemes shorter than or nearly equaling the leaves, axillary, 

 rather slender, somewhat pubescent, many flowered. Flowers white, 

 about 1 cm long. Pod thin, narrowly oblong to oblong-lanceolate, blunt, 

 •1 to 8 cm long, 1 to 1.5 cm wide, very slightly falcate, the wing 1.5 to 

 2 mm wide. 



Luzon, Province of Ilocos Norte, Ciniiing 1162, Bur. Sci. 1G35 Ramos: Province 

 of Benguet, Elmer 6111: Province of Rizal, Merrill 50 'i5: Province of Bataan, 

 Topping 535, Williams lUf: Province of Tayabas, Merrill 1969. 



Manifestly closely allied to Derris scandens (Roxb.) Benth., diflfering especially 

 in its less numerous, much larger leaves, and its pods not distinctly narrowed at 

 both ends as in that species. 



7. Derris elegans (Grah.) Benth. PI. Jungh. (1852) 252; Journ. Linn. Soc. 

 Bot. 4 (1860) Suppl. 109; Baker in Hook. f. Fl. Brit. Ind. 2 (1878) 252; King 

 ex Prain in Journ. As. Soc. Bot. 66=' (1897) 103. 



Pongamia elegans Grah. in Wall. Cat. (1832) no. 7540. 



CuLioN, Merrill 666. Negros, For. Bur. 12^/9 Everett. Lexte, Elmer 1162. 

 Mindanao, District of Zamboanga, Williams 2398: Lake Lanao, For. Bur. 3919 

 Hutchinson, Mrs. Clemens ^3Ji, J/S'i, and several sheets without number. 



The material here referred to Derris elegans seems to differ from the typical 

 form of that species, as described, in being nearly glabrous, and having longer 

 racemes. One specimen cited above, Merrill 666, was referred by Doctor Perkins 

 to Derris uliginosa. xMthough D. elegans is manifestly allied to that species, 

 it is very different in its leaves and inflorescence, and, as noted by Prain, can 

 always be distinguished by its stipellate leaves. 



Tenasserim, the Andaman Islands, Malay Peninsula, and Sumatra. 



8. Derris trifoliata Lour. Fl. Cochinch. (1790) 433. 

 Robinia uliginosa Roxb. ex Willd. Sp. PL 3 (1800) 1133. 

 Dalbergia heterophylla Willd. 1. c. 901. 



Galedupa uliginosa Roxb. Hort. Beng. (1814) 53, Fl. Ind. 3 (1832) 243. 



Pongamia uliginosa DC. Prodr. 2 (1825) 416. 



Pterocarpus frutescens Blanco Fl. Filip. (1837) 562, ed. 2 (1845) 392, ed. 3, 

 2: 356; Naves 1. c. ed. 3, pi. 159. 



Derris uliginosa Benth. PI. Jungh. (1852) 252, Journ; Linn. Soc. Bot. 4 (1860) 

 Suppl. 107; Baker in Hook. f. Fl. Brit. Ind. 2 (1876) 241; F.-Vill. Nov. App. 

 (1880) 68; Vid. Rev. PI. Vase. Filip. (1886) 113. 



Babuyanes Islands, Camiguin, Bur. Sci. 4001 F4nix. Luzon, Province of 

 Zambales, Hallier s. n.: Manila, Elmer 5503: Province of Bataan, For. Bur. 

 6356 Curran: Province of Tayabas, Whitford 581, 597, 159: Province of Cama- 

 rines, For. Bur. 12218, 12288 Curran. Polillo, Bur. Sci. 6988 Robinson. 

 MiNDORO, For Bur. 5516 Merritt, Bur. Sci. 921 Mangubat. Palawan, Bur. Sci. 

 831 Foxworthy. Cebu, Bur. Sci. 1115 McGregor. MinOanao, District of Zam- 

 boanga, Hallier s. n.: District of Cotabato, Mrs. Clemens 810: District of 

 Davao, Williams 21Ji6, Copeland 352. Basilan, For. Bur. 3913 Hutchinson. 



Native names: Mangasin (Tayabas) ; \uba-tuba (Basilan) ; sila-sila, ex Blanco: 

 hiiigasin, himgasinan (Panay), ex F.-Villar. 



A species confined to salt water or brackish swamps along the seashore 



