xni, c. 3 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'. Leaves lanceolate, more than 15 cm long 1. P. mindanensis. 
a*. Leaves less than 15 cm long, ovate or oblong. 
ft 1 . Leaves glabrous on both sides 2. P. contorta. 
fe a . 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. 21893' 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. Clemens 
247, Lanao, Mindanao, February, 1905 ; For. Bur. 24.327 Cortez & Fernandez, 
