300 ENUMERATION OF PHILIPPINE PLANTS ae 
Pterocarpus diadelphus Blanco FI. Filip. (1837) 563, ed. 2 (1845) 
3938, ed. 3, 2 (1879) 357; Merr. in Govt. Lab. Publ. (Philip.) 27 
(1905) 40. 
Derris sinuata Thwaites Enum. Pl. Zeyl. (1859) 93; Benth. in Journ. 
Linn. Soc. Bot. 4 (1860) Suppl. 113; F.-Vill. Novis. App. (1880) 
68; Vidal Rev. Pl. Vase. Filip. (1886) 112; Perk. Frag. Fl. Philip. 
(1904) 84; Merr. in Philip. Journ. Sci. 1 (1906) Suppl. 66. 
Derris thyrsiflora F.-Vill. Novis. App. (1880) 68, non Benth. 
Derris floribunda Naves in Blanco FI]. Filip. ed. 3 (1877-83) t. 336, 
non Benth. 
Derris diadelpha Merr. in Philip. Journ. Sci. 5 (1910) Bot. 103, Fl. 
Manila (1912) 248. 
Luzon (Cagayan, Union, Pangasinan, Zambales, Bataan, Rizal), Mindoro, 
Palawan, Negros, Leyte, Biliran, Mindanao. In thickets, secondary forests, 
etc., at low and medium altitudes. India to Indo-China and Malaya. 
Local names: Asiasimanan (Tag.); bagalbal (Lan.) ; balai-lamok (Ilk.) ; 
baliotos (P. Bis.); dugo-digo (Tag.); dugo-rogo (Tag.); labnit (Kuy.); 
paian (Mbo.); rugo-rigo (Tag.); sila-sila (Tag.); tibalau (Tag.). 
DERRIS LIANOIDES Elm. Leafl. Philip. Bot. 1 (1907) 228; Merr. in Philip. 
Journ. Sci. 5 (1910) Bot. 106. 
Northern Luzon to Palawan and Mindanao, B. S. 17640, 33043 Ramos, 
Merrill 9347, 9225, Elmer 7443, 15754, 9339, Clemens 537. In thickets 
and forests at low and medium altitudes. Endemic. 
DERRIS MICANS Perk. Frag. F]. Philip. (1904) 82; Merr. in Philip. Journ. 
Sci. 5 (1910) Bot. 106. 
Luzon (Ilocos Norte, Pangasinan, Bulacan, Rizal), Alabat, Palawan, 
Merrill 2284, 10481, B. S. 4584, 27271, 21965 Ramos, 29530 Ramos & Edano, 
_ 18281 Otanes, Elmer 12814, 13078. In thickets and secondary forests 
at low and medium altitudes. Endemic. 
Local names: Tablong (Tag.); tubli (Tag.); tugli (Tag.). 
DERRIS MINDORENSIS Perk. Frag. Fl. Philip. (1904) 82; Merr. in Philip. 
Journ. Sci. 5 (1910) Bot. 106. 
Mindoro, Mindanao (Surigao), B. S. 39669 Ramos, Merrill 953, Bolster 
406. In thickets at low altitudes; scarcely distinguishable from Derris 
ferruginea Benth. Endemic. 
Local name: Tubili (Bag.). 
DERRIS OBLONGIFOLIA Merr. in Philip. Journ. Sci. 7 (1912) Bot. 82. 
Luzon (Bontoc), Vanoverbergh 280, 3904. In thickets and forests, 
altitude 1,300 to 1,600 m. Endemic. 
Local name: Kabutut (Bon.). 
DERRIS PHILIPPINENSIS Merr. in Philip. Journ. Sci. 5 (1910) Bot. 104. 
Derris multiflora Benth. var. ? longifolia Benth. in Journ. Linn. Soe. 
Bot. 4 (1860) Suppl. 108; Vidal Phan. Cuming. Philip. (1885) 109, 
non D. longifolia Benth. 
Derris multiflora Vidal Rev. Pl. Vasc. Filip. (1886) 112; Perk. Frag. 
Fl. Philip. (1904) 88; Merr. in Philip. Journ. Sci. 1 (1906) Suppl. 
66, non Benth. 
