340 The Philippine Journal of Science m* 



oil dots are small but very numerous. Inflorescences 1- or 2- 

 flowered, axillary, pedicels slender with a few minute bracts. 

 The flower buds are very large, 35 to 45 by 10 to 12 mm, greenish- 

 white. The petals are 35 to 40 by 5 to 10 mm, bluntly pointed 

 at the apex and narrowed gradually to the base. Stamens 10, 

 unequal, filaments long, slender, free. Pistil 20 to 25 mm long! 

 slightly hairy, with a clavate ovary narrowing abruptly into 

 the cylindric style 12 to 15 mm long, which ends in a capitate 

 stigma. Ovary 5- or 6-celled, narrowing gradually toward the 

 base. Fresh fruits subglobose, when dry often slightly oval, 

 70 to 80 mm in diameter, nearly smooth, gray-green with a 

 leathery pericarp 10 to 12 mm thick with irregular branched 

 lacunae filled with a resinous gum ; loculae 5 or 6, with carti- 

 laginous solid walls 3 to 4 mm thick, the locules filled with a 

 transparent jellylike gum surrounding the seeds. Seeds 8 to 

 10 m a locule, lenticular, 9 to 10 by 7 to 8 by 3.5 to 4 mm, 

 gray-green in color, abundantly provided with very thin, elon- 

 gated, hairlike, slightly fimbriate paleae 6 to 10 mm long, 0.26 

 to 2 mm wide. Near the hilum on the angle of the seed is a 

 light yellowish-gray ariloid ridge 5 to 7 mm long and 1 to 2 

 mm high; because of the numerous hairlike fimbriate paleae 

 the seeds almost completely fill the space, the interstices alone 

 being filled with transparent jellylike gum. In the fresh fruits 

 the paleae of the seeds being embedded in the transparent gum 

 are very inconspicuous, but become increasingly conspicuous as 

 the fruit dries. 



On germination the cotyledons remain buried, the first pair 

 ,°l la8 \ eaves are °PPosite, entire, broadly lanceolate, the 

 next tew foliage leaves are pinnate with more and more leaflets. 

 The leaflets often have sharply serrate margins 



The specimens studied at Manila, collected in March, 1918, 

 as well as the fruits sent to Washington and the seeds planted 

 at Los Banos, all come from a tree in the Singapore Botanic 

 Gardens. It is probable that it was grown from seeds taken 

 from the fruit sent to the former director, H. N. Ridley, "some 

 years before 1908, collected by F. G. Penney in southern Siam, 

 especially as Ridley states in his original description of the 

 species that he then had seedlings in the botanic garden. If 

 Planted, say m 1904, the tree would have been old enough to 

 bear fruit in 1917 when Professor Baker collected fruits. 



POSSIBLE ECONOMIC USES OF THE KATINGA 



J™!!! 1 ^ 11 ** f r ° VeS t0 be rather closel y rela *ed to Chaeto- 

 spermum ,t is not improbable that, like Chaetospemium gluti- 



