joii. a.* Foxworthy: Philippine Dipterocarpaceae, II 185 



Hance in the greater size of the leaves and the fruits and in the evident 

 resinous coating of the upper part of the fruit. 



4. PENTACME A. de Candolle 



Key to the Philippine species of Pentacme. 



a 1 . Leaves lanceolate, more than 15 cm long 1. P. mindanensU. 



a*. Leaves less than 15 cm long, ovate or oblong. 



6\ Leaves glabrous on both sides 2. P. contorta. 



b*. Leaves tomentose on under side 3. P. sp. (from Tayabas). 



1. PENTACME MINDANENSIS sp. nov. 



Arbor magna. Foliis et fructibus P. contortae similis sed 

 majoribus. 



A large tree with oblong-lanceolate glabrous leaves, which are 

 bluntly acuminate, with rounded bases, 19 to 29 cm long, 8 to 10 

 cm wide; secondary nerves 8 to 12 pairs. Petioles 2.5 to 4 cm 

 long. Flower clusters paniculate, terminal. Individual flowers 

 on slightly obconical pedicels 1 to 2 mm long. Branches of the 

 inflorescence stellate-pubescent. Pedicels and outside of calyx- 

 lobes grayish pubescent. Inside of the calyx puberulous. Sepals 

 imbricate, broadly elliptic, concave, 6 mm long, 5 to 6 mm wide, 

 with a fringe of coarser pubescence along the edge, and very faint 

 longitudinal vein-like markings. Corolla spreading, about 1.5 cm 

 in diameter. Petals grayish pubescent on the outside, yellow or 

 brownish within, spreading after surpassing the sepals, obovate- 

 elliptic, sometimes slightly retuse at the apex, narrowed to the 

 base, 12 to 13 mm long, 4.5 to 6 mm wide, with about 15 longitu- 

 dinal veins. Stamens fifteen, 8 mm long. Filament thick, 3.5 

 mm long 0.6 mm wide. Anther cells narrowly oblong, mucronate 

 at apex, each anther with five mucronate appendages. Anther 

 4.5 mm long 0.8 mm wide. Appendages short, 0.5 to 1.0 mm 

 long; anther-cells tapering to the apex. Ovary depressed- 

 hemispheric, densely pubescent, 1.8 mm high, 2 mm in diameter, 

 tapering abruptly into the long, cylindric, pubescent, faintly 

 ridged style, which is 6.6 mm long and 0.3 mm in diameter, 

 slightly hollowed at apex. 



The fruit is pubescent, 3 cm long, 13 to 14 mm in diameter. 

 The long wings are 7 to 8 cm long, 15 to 27 mm wide ; the short 

 wings 2.5 to 3 cm long, 6 to 7 mm wide; longitudinal veins 12 to 

 14, transverse veins numerous, distinct, oblique. 



Mindanao, Zamboanga Province, For. Bur. 21898 Villamil, May 25, 1914 

 (type). 



Other collections referred to this species are: For. Bur. 18787, 18792 

 Foxworthy, De Mesa & Villamil, Zamboanga, June 19, 1912; Mrs. Clemen* 

 247, Lanao, Mindanao, February, 1905; For. Bur. H827 Cortez & Fernandez, 



