EXUMEUATION OF rHILIlTIXE LEiUMIXOSAE. 103 



Pod siiborbiculai- or sliortly and broadly oblong, 2.5 to 3 cm wide, never 

 more than twice as long as wide, subtruncate at both ends ( § Euuerris) . 

 Eeaflets 10 to IS cm long, stipellatc; jnid slightly i)ul)escent. 



7. D. eJe(j(.i)i!i 

 Leaflets rarely exceeding 10 or 12 cm in lengtli, \isually shorter, exstipcl- 



late; pod glabrous. A littoral species 8. D. irifoliatn 



Pod distinctly winged along both sutures. (Unknown in />. niindorciiNis) ; 

 (§ DiPTERODERRIS). 



Leaflets glabrous; pod broadly oblong, about 2 cm wide 9. D. mieaiis 



Leaflets somewhat ferruginous-pubescent 10. /). mimlorenftls 



Standard with two auriculate callosities at the base of the limb (S Paraderris). 



All parts of the plant glabrous 11. D. licnwiflcs 



Young branches, leaves, and inflorescence densely ferruginous-pubescent. 



12. D. rlUplieii 

 1. Derris diadelpha (Blanco) comb. nov. 

 PteromrpuK diadelphiis Planco Fl. Filip. (1837) 563, ed. 2 (1845) 393, ed. 3, 



2: 357. 



Pongainia simtata Wall. Cat. (1832) no. 5911, nomen. 



Derris siniiala Thwaites Enum. PI. Zeyl. (1859) 93; Bentli. in Journ. Linn. 

 Soc, Bot. 4 (1860) Suppl. 113; Baker in Hook. f. Fl. Brit. Ind. 2 (1878) 246; 

 F.-Vill. Nov. App. (1880) 68; Prain ex King in .Journ. As. Soc. Beng. 66 - (1897) 

 98; Perk. Frag. Fl. Philip. (1904) 84; Merr. in Philip. Journ. Sci. 1 (1906) 

 Suppl. 66. 



Derris florihundo Naves in Blanco Fl. Filip. ed. 3, 2>1- 3-i<J, "•'" Benth. 



Derris thyrsiflora F.-ViU. Nov. App. (1880) 68, non Benth. 



Luzon, Province of Zambales, Merrill 21S9, Hallier s. n., For. Bur. 701 'i 

 Curran: Province of Bataan. Bur. Hci. 590 Mangubat, Merrill 2561, For. Bur. 

 12931 Alvarez, Whitford 1261: Province of Rizal, Bur. Sci. 6758 Robinson, For. 

 Bur. J,76 Ahern''s collector, Guerrero 30, Merrill 173If, 28.'il, Decades Philip. Forest 

 Fl. no. 213: jNlanila, Alberto s. n. INIindoro, Merrill 9.'i8, For. Bur. 12229 Rosen- 

 blulh. Neoros, For. Bur. 5568 Everett, Whitford 163S. Mindanao, Province of 

 Surigao, Ahern 359. 



Native names: Balitos, baloc-holoc (Negros) ; tibahto, bahnili. ba<iarilao. asin- 

 asinanan (Rizal); dugo-rogo, rugo-rugo (Bataan); bala-g-lamov (Zambales); 

 silasila, ex Blanco. 



Blanco's Pterocurpiis diadclphiis was referred by F.-Villar to Derris thyrsiflora 

 Benth.. a species that does not occur in the area from which Blanco secured his 

 material. His description, although short, applies unmistakably to the species 

 commonly known as Derris sinuata Thw., and diadelphus, being the earliest valid 

 specific name is here adopted. The species is common in the region from which 

 Blanco secured most of his material, and flowers from April to .Tiuie. 



Ceylon and India to the Malay Peninsula and Archipelago, and Indo-China. 



2. Derris thyrsiflora Benth. in Journ. Linn. Soc. Bot. 4 (1860) Suppl. 249; 

 Prain ex King in Journ. As. Soc. Beng. 66" (1897) 100. 



Millettia thyrsiflura Benth. V\. 3un(yh. (1851) 249. 

 Basilan, Hallier s. n. 



The specimen is in fruit, and is probably referable here; ilowering specimens 

 may lead to a different disposition of it. 



Nicobar Islands, the Malay Peninsula, Sumatra, and Java, 



3. Derris polyantha Perk. Frag. Fl. Philip. (1904) 83. 



Luzon, Province of Pampanga, Merrill l.'i57 : Province of Rizal, Merrill 1692. 

 For. Bur. .'i30, 2653 Ahern's collector, Bur. Sci. 2188 Ramos, Decades Philip. Forest 

 Fl. no. 180 Ahern's collector. 



