364 ENUMERATION OF PHILIPPINE PLANTS 1923 



11. LEPISTEMON Blume 



LEPISTEMON OBSCURUM (Blanco) comb. nov. 



Polemonium obscwum Blanco Fl. Filip. (1837) 103, ed. 2 (1845) 75, 



ed. 3, 1 (1877) 139. 

 Lepistemon flavescens F.-Vill. Novis. App. (1880) 142, non Blume. 

 Lepistemon binectarif erum Merr. Fl. Manila (1912) 383, Sp. Blan- 



coanae (1918) 321, non O. Kuntze. 

 Lepistemon trichocarpum Gagnep. in Not. Syst. 3 (1915) 152. 



Luzon (Bontoc, Benguet, Union, Nueva Vizcaya, Bulacan, Bataan, Ri- 

 zal, Laguna), Mindanao (Lanao, Cotabato). In thickets at low and me- 

 dium altitudes, often common. Celebes. 



Local names: Baai (Bon.); bangbangau-ng-buduan (Ilk.); pisu (Ig.). 



12. IPOMOEA Linnaeus 



IPOMOEA BATATAS (Linn.) Poir. in Lam. Encycl. 6 (1804) 14; F.-Vill. 



Novis. App. (1880) 140; Merr. in Philip. Journ. Sci. 1 (1906) Suppl. 



119, 5 (1910) Bot. 379, Fl. Manila (1912) 392, Sp. Blancoanae 



(1918) 323. 



Convolvulus batatas Linn. Sp. PI. (1753) 154; Blanco Fl. Filip. 



(1837) 93, ed. 2 (1845) 68, 3, 1 (1877) 129. 

 Batatas edulis Choisy Conv. Or. (1834) 53, DC. Prodr. 9 (1845) 338. 



Cultivated throughout the Philippines. Introduced by the Spaniards 

 from Mexico in the early colonial period, now cultivated in all warm 

 countries. The sweet potato. 



Local names: Kamote (all dialects, of Aztec origin) ; lapni (If.) ; pang- 

 gi-bagun (Sul.) ; tigsi (Bis.); tugi (Bon.). 



IPOMOEA CAIRICA (Linn.) Sweet Hort. Brit. (1827) 287; Merr. Fl. 



Manila (1912) 391. 

 Convolvulus cairicus Linn. Syst. ed. 10 (1759) 922. 

 Ipomoea palmata Forsk. Fl. Aeg.-Arab. (1775) 43; C. B. Clarke 



in Hook. f. Fl. Brit. Ind. 4 (1883) 214; F.-Vill. Novis. App. (1880) 



142; Usteri Beitr. Ken. Philip. Veg. (1905) 122. 

 Convolvulus paniculatus Naves in Blanco Fl. Filip. ed. 3 (1877-83) 



t. 32, non Blanco. 



Widely distributed in cultivation, occurring also in waste places and 

 thickets near dwellings. A native of tropical Asia and Africa, now widely 

 cultivated in tropical countries. 



Local name: Aurora (Sp.). 



IPOMOEA DIGITATA Linn. Syst. ed. 10 (1759) 924; C. B. Clarke in 

 Hook. f. Fl. Brit. Ind. 4 (1883) 202; Vidal Phan. Cuming. Philip. 

 (1885) 129, Rev. PL Vase. Filip. (1886) 196; Merr. Fl. Manila 

 (1912) 391. 

 Convolvulus paniculatus Linn. Sp. PL (1753) 156; Blanco Fl. Filip. 

 (1837) 96, ed. 2 (1845) 70, ed. 3, 1 (1877) 131, t. 81, non Ipomoea 

 paniculata Burm. f. 

 Ipomoea paniculata R. Br. Prodr. (1810) 486; F.-Vill. Novis. App. 

 (1880) 142; Merr. in Philip. Journ. Sci. 1 (1906) Suppl. 119, Sp. 

 Blancoanae (1918) 323, non Burm. f. 



