216 ENUMERATION OF PHILIPPINE PLANTS 1922 



and medium altitudes; represented by numerous collections. India to China 

 and Malaya. 



Local names: Aribukbuk (Ilk.); bayag-kabayo (Tag.); dadakan (Bag.); 

 pulugan (Bik.) ; ubi-ubihan (Tag.); utong-utongan (Tag.). 



DIOSCOREA CUMINGII Prain & Burkill in Journ. As. Soc. Beng. II 4 

 (1908) 449, 10 (1914) 25, Lean. Philip. Bot. 5 (1913) 1595. 

 Dioscorea inaequifolia Elmer ex Prain & Burkill in Leafl. Philip. 

 Bot. 5 (1913) 1595, Journ. As. Soc. Beng. II 10 (1914) 24. 



Luzon (Apayao, Bontoc, Benguet, Lepanto, Rizal, Bataan, Laguna, Nueva 

 Vizcaya, Rizal, Camarines, Sorsogon) , Mindoro, Mindanao, Cuming 14.69, 

 Elmer 15333, 8692, Merrill U55, 7683, Phil. PL 2034, F. B. 22956bis Caly- 

 cosa, 3376 Ahern's collector, 69 Barnes, B. S. 8207 Ramos. In thickets and 

 forests at low and medium altitudes, ascending to 1,400 m. Endemic. 



Local names: Lima-lima (Tag.); pari (Bag.). 



DIOSCOREA DIVARICATA Blanco Fl. Filip. (1837) 797, ed. 2 (1845) 

 550, ed. 3, 3 (1879) 207; Merr. in Philip. Journ. Sci. 1 (1906) 

 Suppl. 35, 2 (1907) Bot. 436, Sp. Blancoanae (1918) 101. 

 Dioscorea batatas Naves Novis. App. (1880) 258, non Decne. 

 Dioscorea foxworthyi Prain & Burkill in Journ. As. Soc. Beng. II 

 10 (1914) 34. 

 Luzon (Ilocos Norte, Pangasinan, Pampanga, Rizal, Bataan, Laguna), 

 B. S. 22425, 33185 Ramos, 29960, 30092 Fenix, 1558 Foxworthy, F. B. 2572 

 Borden, Merrill Sp. Blancoanae 391. In thickets and secondary and 

 primary forests at low and medium altitudes. Endemic. 



Local names: Baliakag (Bis.) ; buloi (Tag.) ; dulian (Ilk.) ; durian (Ilk.) ; 

 duyan (Pang.); kiroi (Tag.); kobag (Tag.); pakit (Tag.); ubag (Tag.). 



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

 1594, Journ. As. Soc. Beng. II 10 (1914) 24 (inch var. vera and 

 var. dubia) . 



Batan Islands, Luzon (Laguna, Tayabas), Samar, Elmer 9156, 8265, B. 

 S. 28717, 24.196 Ramos & Edano, 3659 Fenix. In forests at low altitudes; 

 really distinct from D. cumingii Prain & Burkill? Endemic. 



DIOSCOREA ESCULENTA (Lour.) Burkill in Gard. Bull. Straits Settl. 

 1 (1917) 396; Merr. Interpret. Herb. Amb. (1917) 147, Sp. Blan- 

 coanae (1918) 102. 



Oncus esculentus Lour. Fl. Cochinch. (1790) 194. 



Dioscorea papillaris Blanco Fl. Filip. (1837) 801, ed. 2 (1845) 552, 

 ed. 3, 3 (1879) 200. 



Dioscorea tugui Blanco Fl. Filip. (1837) 800. 



Dioscorea sativa Blanco Fl. Filip. ed. 2 (1845) 551, ed. 3, 3 (1879) 

 209, Naves Novis. App. (1880) 259, non Linn. 



Dioscorea fasciculata Roxb. Fl. Ind. ed. 2, 2 (1832) 801; Naves 

 Novis. App. (1880) 260; Merr. Fl. Manila (1912) 151. 



Dioscorea tiliaefolia Kunth Enum. 5 (1840) 401; Miq. Fl. Ind. Bat. 

 3 (1859) 576; Naves Novis. App. (1880) 260; Vidal Phan. Cuming. 

 Philip. (1885) 153, Rev. PI. Vase. Filip. (1886) 276. 



Dioscorea aculeata Naves Novis. App. (1880) 260; Prain & Burkill 

 in Journ. As. Soc. Beng. II 10 (1914) 19, Leafl. Philip. Bot. 5 

 (1913) 1593 (var. tiliaefolia Prain & Burkill), non Linn. 



