Vo1 - 3 RUBIACEAE 535 



TRICALYSIA NEGROSENSIS Elm. Leafl. Philip. Bot. 2 (1908) 518. 



Negros, Elmer 9685. In primary forests, altitude about 1,050 m. En- 

 demic. 



Local name: Louat (C. Bis.). . 



TRICALYSIA PUBERULA Merr. in Philip. Journ. Sci. 10 (1915) Bot. 113. 



Luzon (Isabela, Laguna), Catanduanes, B. S. 20431, 30205 Ramos, F. B. 

 26792 Mabesa, 24089 Barros. In primary forests at low altitudes, as- 

 cending to 300 m. Endemic. 



Local names: Malakafe (Tag.); mehebenabe (Klg.). 



TRICALYSIA SESSILIS (Elm.) comb. nov. 



Diplospora sessilis Elm. Leafl. Philip. Bot. 4 (1912) 1329. 

 Palawan, Elmer 13139. On gravel bars along Iwahig River, altitude 

 about 150 m; probably referable to some other genus. Endemic. 



TRICALYSIA TINAGAOENSIS Elm. Leafl. Philip. Bot. 1 (1906) 34. 

 Phaleria axillaris Elm. op. cit. 8 (1915) 2840. 



Samar, Leyte, Negros, Dinagat, Tinago, Mindanao (Agusan, Lanao, 

 Zamboanga), Basilan, Ahem 417, Elmer 13883, Williams 2329, Merrill 

 8097, Clemens 1031, Wenzel 1112, B. S. 24796 Edano, 15334 Ramos, 35153, 

 35164 Ramos & Pascasio, 36653, 37333 Ramos & Edano, 16170 Reillo, F. B. 

 18938 Miranda, 5555 Everett, 13693 Curran, 23315 Agama, 27035 Malaua. 

 In primary forests at low and medium altitudes, ascending to 900 m. En- 

 demic. 



Local names: Dahingyoyon (Mbo.) ; kapikapihan (Tag.); kulipapa 

 (Bik.). 



35. KNOX I A Linnaeus 



KNOXIA CORYMBOSA Willd. Sp. PI. 1 (1797) 582; Hook. f. Fl. Brit. 

 Ind. 3 (1880) 128; F.-Vill. Novis. App. (1880) 109; Vidal Phan. 

 Cuming. Philip. (1885) 119, Rev. PI. Vase. Filip. (1886) 155. 

 Luzon (Cagayan, Ilocos Norte, Ilocos Sur, Bontoc, Benguet, Lepanto, 

 Nueva Vizcaya, Pangasinan, Zambales, Bulacan), Culion, Palawan, Min- 

 danao (Bukidnon, Lanao, Davao). In open places, on banks, etc., some- 

 times at sea level, more commonly at medium altitudes, ascending to 1,500 

 m. India to China through Malaya to tropical Australia. 

 Local names: Dapit (Bon.); sambit (Bag.). 



36. PLECTRONIA Linnaeus 

 PLECTRONIA BRUNNEA Merr. in Philip. Journ. Sci. 17 (1920) 441. 



Luzon (Tayabas, Camarines, east coast), B. S. 28791, 28612, 33858, 33916 

 Ramos & Edano. In the mossy forest, altitude about 1,000 m. Endemic. 



PLECTRONIA CORDATA Merr. in Philip. Journ. Sci. 12 (1917) Bot. 166. 

 Luzon (Tayabas, east coast), B. S. 26549 Ramos & Edano. On forested 

 slopes, altitude about 2,000 m. Endemic. 



PLECTRONIA CULION ENSIS (Elm.) comb. nov. 



Lasianthus culionensis Elm. Leafl. Philip. Bot. 1 (1906) 11. 



Culion, Merrill 615, B. S. 41203, 41399 Ramos. In dry secondary for- 

 ests at low altitudes. Endemic. 



