VoL 2 PIPERACEAE 7 



PIPER COSTULATUM C. DC. Leafl. Philip. Bot. 3 (1910) 764, Philip. 

 Journ. Sci. 5 (1910) Bot. 420, 11 (1916) Bot. 208. 



Luzon (Nueva Ecija, Nueva Vizcaya, Bataan, Tayabas), Panay, Min- 

 danao (Agusan). In forests at higher altitudes. Endemic. 

 Local names: Pagitan (Mbo.) ; sobo-manok (Tag.). 



PIPER CRASSILIMBUM C. DC. in Philip. Journ. Sci. 11 (1916) Bot. 210. 

 Luzon (Benguet), Merrill 7660, 7649. In thickets, altitude about 1,500 m. 

 Endemic. 



PIPER CRASSINODUM C. DC. Leafl. Philip. Bot. 3 (1910) 780, Philip. 

 Journ. Sci. 5 (1910) Bot. 445. 



Luzon (Tayabas, Laguna), Elmer 804.2, B. S. 28723 Ramos & Edano, B. 

 S. 27972 Ocampo. In forests, altitude about 1,000 m. Doubtfully distinct 

 from Piper allenii C. DC. Endemic. 



PIPER CRISTATUM C. DC. Leafl. Philip. Bot. 3 (1910) 770, Philip. 

 Journ. Sci. 5 (1910) Bot. 428. 



Leyte, Mindanao (Davao), Elmer 10703, Wenzel 638, 1130. In forests, 

 altitude 500 to 1,000 m. Endemic. 



Local names: Busok-busok (Bag.); buyok-buyok (C. Bis.). 



PIPER CURTI FOLIUM C. DC. in Philip. Journ. Sci. 5 (1910) Bot. 421. 



Luzon (Abra, Bontoc), B. S. 7107 Ramos, 37844 Ramos & Edano. In 

 the mossy forest, altitude about 1,800 m. Endemic. 



PIPER DAGAMIENSE C. DC. in Philip. Journ. Sci. 11 (1916) Bot. 211. 



Luzon (Tayabas), Panay, Leyte, Samar, B. S. 15181, 24186, 24331, 24550 

 Ramos, B. S. 28591, 313^9, 31425 Ramos & Edano, 32493 McGregor. In 

 damp forests at low and medium altitudes. Endemic. 



Local name: Buyat-halo (P. Bis.). 



PIPER DAGATPANUM C. DC. in Perk. Frag. Fl. Philip. (1905) 154, Philip. 

 Journ. Sci. 5 (1910) Bot. 455. 

 Mindanao (Davao), {Warburg 14-739, 14738). Probably from forests 

 at medium altitudes. Endemic. 



PIPER DAVAOENSE C. DC. in Perk. Frag. Fl. Philip. (1905) 154, Leafl. 

 Philip. Bot. 3 (1910) 785, Philip. Journ. Sci. 5 (1910) Bot. 453. 



Mindanao (Davao, Agusan), (Warburg 14740, 14745), Elmer 13582, 

 11065. In bamboo thickets, altitude about 750 m. Endemic. Perhaps not 

 distinct from Piper interruptum Opiz. 



Local names: Bitung-tungon (Mbo.); manikatapai (Bag.). 



PIPER DECUMANUM Linn, in Stickman Herb. Amb. (1754) 19, Amoen. 

 Acad. 4 (1759) 128, Sp, PL ed. 2 (1762) 41; Merr. Interpret. Herb. 

 Amb. (1917) 181. 

 Sirium decumanum Rumph. Herb. Amb. 5: 45, t. 27! 

 Piper forstenii C. DC. Prodr. 16 * (1869) 348, Leafl. Philip. Bot. 3 

 (1910) 768, Philip. Journ. Sci. 5 (1910) Bot. 424. 

 Mindanao (Agusan, Bukidnon, Davao, Lanao), Clemens 572, B. S. 

 13667 Fenix, Elmer 13296, 11179. In forests at medium altitudes. Mo- 

 luccas. 



Local names: Baragit (Bag.); buyog (Mbo.); malapagba (Buk.). 



