VoL 2 PIPERACEAE 13 



Negros, Elmer 94-56. In forests, altitude about 1,200 m. Endemic. 

 Local name: Buyok-buyok (C. Bis.). 



PIPER OBOVATIBRACTEUM C. DC. in Leafl. Philip. Bot. 3 (1910) 784, 

 Philip. Journ. Sci. 5 (1910) Bot 447, 11 (1916) Bot. 221. 



Central Luzon to Mindanao. In forests at medium altitudes. Endemic. 

 Local name: Dumadingan (Lan.). 



PIPER OVATIBACCUM C. DC. in Lean. Philip. Bot. 3 (1910) 782, Philip. 

 Journ. Sci. 5 (1910) Bot. 445, 11 (1916) Bot. 220. 

 Piper robinsonii C. DC. in Philip. Journ. Sci. 5 (1910) Bot. 445. 



Central Luzon to Mindanao, in forests at medium altitudes. Endemic. 

 Local names: Buyo-hayo (P. Bis.); diltit (Ig.) ; litlit (Tag.); litlit- 

 matsing (Tag.); mapoua (Buk.). 



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

 Palawan, B. S. 15 573 Fenix. On trees along the seashore. Endemic. 



PIPER PARC! RAM EUM C. DC. in Lean. Philip. Bot. 3 (1910) 781, Philip. 

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



Mindanao (Davao), Elmer 1127b, 10899. In forests, altitude about 900 

 m. Endemic. 



Local names: Poruan (Bag.); salimbangon (Bag.). 



PIPER PAUCI NERVE C. DC. in Perk. Frag. Fl. Philip. (1905) 156, Philip. 

 Journ. Sci. 5 (1910) Bot. 456. 



Luzon (Isabela), (Warburg 11929). Endemic. 



PIPER PENNINERVE C. DC. in Perk. Frag. Fl. Philip. (1905) 157, Philip. 

 Journ. Sci. 5 (1910) Bot. 440, 11 (1916) Bot. 218. 



Luzon to Mindanao, B. S. 13857 Ramos & Edano, 23557 Ramos, 15230, 

 £4284, 28392 Fenix, 11818 Robinson, Wenzel 2, 374, 719. In forests at 

 medium altitudes. Endemic. 



PIPER PETRAEUM C. DC. in Philip. Journ. Sci. 5 (1910) Bot. 430. 

 Luzon (Benguet), Elmer 6430, Sandkuhl 158. In thickets. Endemic. 



PIPER PHILIPPINUM Miq. Syst. Pip. (1843) 322, Fl. Ind. Bat. 1 * 

 (1858-59) 453; C. DC. Prodr. 16 * (1869) 348, Philip. Journ. Sci. 

 5 (1910) Bot. 437; F.-Vill. Novis. App. (1880) 175; Vidal Phan. 

 Cuming. Philip. (1885) 138, Rev. PI. Vase. Filip. (1886) 219. 



Luzon (Rizal, Tayabas, Albay), Samar, Leyte, Cuming 912, B. S. 24184, 

 26205 Ramos, 29127, 29131 Ramos & Edano. In forests at medium altitudes. 

 Endemic. 



PIPER PERPUNCTATUM C. DC. in Philip. Journ. Sci. 11 (1916) Bot. 219. 

 Palawan, Merrill 7246. In forests at low altitudes. Closely allied to 

 Piper caninum Blume. Endemic. 



PIPER PILISPICUM C. DC. in Philip. Journ. Sci. 5 (1910) Bot. 452. 



Luzon (Ilocos Norte, Benguet), B. S. 5720 Ramos, F. B. 12484 Merritt 

 & Darling. Endemic. 



PIPER PODANDRUM C. DC. in Philip. Journ. Sci. 5 (1910) Bot. 436, 11 

 (1916) Bot. 217. 

 Luzon (Zambales), Catanduanes, B. S. 5058, 30495 Ramos, F. B. 8141 

 Cwrran & Merritt. In forests. Endemic. 



