1893.] G. King — Materials for a Flora of the Malayan Peninsula. 89 



Sepals of fruiting calyx much 

 thickened and woody at the 

 base. 



Calyx forming a cup at the 

 base of the fruit, but not 

 adhering to it : pericarp 

 woody ... ... 9 Balanocarpus. 



Calyx adherent to the fruit : pericarp 



thickly leathery ... ... 10 Pachynocarpus. 



Sect. II. Ancistroclade^i. Ovary 1-celled with 

 a single ovule ; stigmas 3, distinct : Seeds 

 with copious ruminate albumen. Exstipulate 

 climbers. ... ... ... ... 11 Ancistrocladus. 



1. Djpterocarpus, Gsertn. f. 



Lofty trees, stellately pubescent or more or less clothed with 

 fascicled hairs. Leaves coriaceous, entire or sinuate-crenate; lateral nerves 

 connected by marginal loops and transverse reticulations ; stipules large, 

 valvate, enclosing the terminal bud, finally caducous and leaving au 

 annular scar. Flowers large, white or reddish. Calyx-tube free. Petals 

 usually pubescent externally, especially on the outer margin. Stamens 

 oo ; anthers linear, equivalved, acuminate. Ovary 3-celled ; style filiform ; 

 ovules 2 in each cell. Fruit nut-like, 1-seeded, enclosed in the accres- 

 cent calyx-tube, free ; accrescent calyx-lobes 2, erect. Seed adnate to 

 the base of the pericarp ; cotyledons large, thick, unequal ; radicle 

 inconspicuous. — Distrib. Tropical E. Asia ; species about 60. 

 Ripe fruit sphasroidal or ellipsoidal, neither angled nor winged. 



Young branches, petioles, under surfaces of the midribs, and 

 nerves of the leaves covered with coarse stiff fasciculate 

 hairs. 



Fruit glabrous ... ... ••• 1. P. crinitus. 



„ stellate-pubescent ... ... 2. P. ScortecMnii. 



Young branches deciduously pubescent. 

 Leaves with 12 or more pairs of nerves. 

 Leaves oblong-elliptic, their under sur- 

 faces sparsely stellate-pubescent ... 3. P. Skinner i. 

 Leaves elliptic or ovate-elliptic, their 

 under surfaces puberulous or quite 

 glabrous ... ... .„ 4 D. turbinatus. 



Leaves with 8 to 10 pairs of nerves. 



All parts quite glabrous ... ... 5. P. Kerrii. 



