218 ENUMERATION OF PHILIPPINE PLANTS 1922 



Luzon (Rizal), Merrill Sp. Blancoanae 634, Phil. PL 6, 14.98, B. S. 12529 

 Ramos. In thickets at low altitudes. This is perhaps referable to D. 

 divaricata Blanco, the plants from not fully grown tubers. Endemic. 



Local names: Kiroi (Tag.); kobag (Tag.). 



DIOSCOREA LUZON ENSIS Schauer in Nov. Act. Acad. Nat. Cur. 19 

 (1843) Suppl. 1: 444; Miq. PI. Ind. Bat. 3 (1859) 571; Naves 

 Novis. App. (1880) 258; Vidal Phan. Cuming. Philip. (1885) 153, 

 Rev. PI. Vase. Filip. (1886) 276; Merr. in Philip. Journ. Sci. 5 

 (1910) Bot. 339; Prain & Burkill in Lean. Philip. Bot. 5 (1913) 



1597. Journ. As. Soc. Beng. II 10 (1914) 28. 



Luzon (Bontoc, Lepanto, Ilocos Norte, Union, Nueva Vizcaya, Bu- 

 lacan, Rizal, Batangas, Laguna, Tayabas), Cuming 779, Elmer 18290, 18466, 

 Merrill Sp. Blancoanae 117, Phil. PI. 1070, F. B. 24909 Mabesa, 13218 

 Curran, 13336 Tamesis, 3293 Ahern's collector, B. S. 13734, 37240, 21752, 

 1380 Ramos. In thickets at low and medium altitudes. Endemic. 



Local names: Aribubu (Ilk.) ; kamangeg (Ilk.); kirini (Tag.); mayat- 

 bang (Tag.); pakit (Tag.); ubag (Tag.). 



DIOSCOREA MERRILLII Prain & Burkill in Leafl. Philip. Bot. 5 (1913) 



1598, Journ. As. Soc. Beng. II 10 (1914) 35. 



Mindoro, Mindanao (Davao), Merrill 5657, Elmer 11924. In old clear- 

 ings and in thickets, altitude about 700 m. Endemic. 



DIOSCOREA NUMMULARIA Lam. Encycl. 3 (1789) 231; Naves Novis. 



App. (1880) 258; Merr. in Philip. Journ. Sci. 2 (1907) Bot. 276; 



Prain & Burkill in Lean. Philip. Bot. 5 (1913) 1599, Journ. As. 



Soc. Beng. II 10 (1914) 35. 

 Luzon (Bontoc to Sorsogon, in most or all provinces), Polillo, Leyte, 

 Camiguin de Misamis, Mindanao, Basilan. In thickets and forests at 

 low and medium altitudes. 



Var. GLAUCA Prain & Burkill in Journ. As. Soc. Beng. II 10 (1914) 35. 



Luzon (Benguet), Elmer 5638. Scarcely distinguishable from. the type. 

 The species in Celebes, Moluccas, New Guinea to Prince of Wales Island. 



Local names: Banan (Bag.); malabalukbuk-dagis (Pamp.) ; pakit 

 (Tag.); pinot (Tag.); ubing-basol (Tag.). 



DIOSCOREA PENTAPHYLLA Linn. Sp. PL (1753) 1032; Blanco Fl. Filip. 

 (1837) 802, ed. 2 (1845) 552, ed. 3, 3 (1879) 210; Miq. FL Ind. 

 Bat. 3 (1859) 574; Naves Novis. App. (1880) 259; Merr. in Philip. 

 Journ. Sci. 1 (1906) Suppl. 35, 3 (1908) Bot. 401, Fl. Manila 

 (1912) 152, Sp. Blancoanae (1918) 103; Prain & Burkill in Journ. 

 As. Soc. Beng. II 10 (1914) 23. 



Luzon (Rizal, Bataan, Laguna), Panay, Merrill Sp. Blancoanae 458, F. 

 B. 1971 Ahern's collector, B. S. 12176 Ramos. In thickets at low and 

 medium altitudes. India to Yunnan, southward through Malaya to New 

 Guinea. 



Local names: Kasi (Ig.) ; lima-lima (Tag.) sapang (Bis.). 



The Philippine form is apparently referable to var. malaica Prain & 

 Burkill 1. c. 



