VoL 2 PIPER ACE AE 15 



Piper sarcostylum C. DC. in Philip. Journ. Sci. 11 (1916) Bot. 216. 

 Piper copelandii C. DC. in op. cit. 5 (1910) Bot. 447. 



Southern Luzon to Mindanao, Cuming 834, B. S. 13282, 17507, 22150 

 Famos, Copeland 1298, Merrill 7305. In forests at low altitudes. Ende- 

 mic. Allied to Piper abbreviatum Opiz. 



Local name: Guti-guti (Bik.). 



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

 425, 11 (1916) Bot. 209. 

 Piper leyteanum C. DC. in Philip. Journ. Sci. 11 (1916) Bot. 220. 



Southern Luzon, Leyte, Biliran, Samar, Mindanao, Wenzel 505, 214, 463, 

 657, 1819, B. S. 15247, 15379, 17653, 23405 Ramos, 18882 McGregor, Elmer 

 13521, Clemens. In forests at low and medium altitudes. 



Var. PILOSIUS C. DC. in Philip. Journ. Sci. 11 (1916) Bot. 209. 



Samar, B. S. 17434, 17658 Ramos. Endemic. 

 Local name: Ihalason (Mbo.). 



PIPER RUF! NERVE Opiz in Presl Rel. Haenk. 1 (1828) 159; Miq. Syst. 



Pip. (1843) 336; C. DC. Prodr. 16 * (1869) 377; F.-Vill. Novis. 



App. (1880) 176; C. DC. in Philip. Journ. Sci. 5 (1910) Bot. 462. 



Luzon, Haenke. A species of doubtful status, known only from the 



original description. 



PIPER SAMARANUM C. DC. in Philip. Journ. Sci. 11 (1916) Bot. 223. 



Samar, Leyte, B. S. 17546 Ramos, Wenzel 15k.lt. In forests at low alti- 

 tudes. Endemic. 



PIPER SARMENTOSUM Roxb. PI. Ind. 1 (1820) 162; C. DC. in Philip. 

 Journ. Sci. 5 (1910) Bot. 424, 11 (1916) Bot. 218. 

 Piper siassiense C. DC. in Philip. Journ. Sci. 5 (1910) Bot. 443. 

 Southern Luzon, Negros, Palawan, Mindanao, Sulu Archipelago, Mer- 

 rill 6729, 9480, 5811, Elmer 14245, Wenzel 1882. In thickets, coconut 

 groves, etc., at low altitudes. India to southern China, southward to the 

 Moluccas. 



Local name: Patai-butu (Sul.). 



PIPER SIBULANUM C. DC. in Perk. Frag. PI. Philip. (1905) 158, Philip. 

 Journ. Sci. 5 (1910) Bot. 442. 



Mindanao (Davao), {Warburg 14742). In forests at low altitudes. En- 

 demic. 



PIPER STRIATUM C. DC. in Lean. Philip. Bot. 3 (1910) 776, Philip. 

 Journ. Sci. 5 (1910) Bot. 441. 



Mindanao (Davao), Elmer 11764. In forests, altitude about 900 m. 

 Endemic. 



Local name: Miaukau (Bag.). 



PIPER SUBPROSTRATUM C. DC. in Philip. Journ. Sci. 5 (1910) Bot. 425. 

 Mindoro, F. B. 6751 Merritt, B. S. 40726 Ramos & Edano. In forests 

 at low altitudes. Endemic. 



PIPER TAUMANUM C. DC. in Perk. Frag. PI. Philip. (1905) 159, Philip. 

 Journ. Sci. 5 (1910) Bot. 462. 

 Mindanao (Davao), (Warburg 147 41). A species of doutbful status, 

 described from a sterile specimen. Endemic. 



