PHILIPPINE DIPTEROCARPACEAE. 
257 
tertiary veins are sometimes irregularly scurfy. Large, branched stellate 
hairs are often present on the veins, but their occurrence seems to be very 
irregular. Leaves elliptic, shortly acuminate, on long petioles ; blade 8 to 
13 cm long, 4 to 7 cm wide, petioles 3 to 4 cm long ; secondary veins 10 to 
16 pairs, alternating with shorter intermediate veins. Tertiary veins 
parallel, joined by closely reticulate veins. Flowers in drooping panicles ; 
pedicels less than one-half the length of the calyx, each flower supported 
by two, oblong, somewhat unequal, 1- to 5-nerved bracteoles. Anthers 
glabrous, the awn longer than the anther. Stylopodium bell-shaped, 
pubescent, sometimes slightly constricted above the ovary. Fruit globose, 
not much constricted at top, 4 to 15 mm in diameter ; calyx-wings 5 to 9 
cm long and sometimes more than 1 cm broad, with three prominent 
longitudinal veins and numerous, more or less oblique, transverse veins. 
A tree of the lowland forest, ascending to 600 to 750 m above sea 
level.’ 
It is possible that I am here retaining more than one distinct species 
under the name of A. thurifera ; but, Merrill & Eolfe, 1. c., have suggested 
their probable identity and I am unable now definitely to designate 
distinctive characters for different species. It will take a good deal of 
field work to clear up this matter. There do seem to be two definite 
types of fruit, one of which is rather large, globose, 1 to 1.5 cm in diameter 
with wings 5 to 7 cm long and more than 1 cm broad, the other with 
smaller globose fruit, 4 to 8 mm, and longer and narrower wings. I 
have not been able to discover any constant leaf differences. It may be 
that the same tree will produce both kinds of fruit; but we do not know 
that to be the case. 
Some of the Malay Peninsula material which is identified as A. glabra 
certainly belongs to A. thurifera. In the incomplete state of our knowl- 
edge of three two species, I should hesitate to say whether or not the 
two are identical, but it is certain that A. thurifera does occur on the 
Malay Peninsula. 
This species has been found in the Philippines as follows : 
Luzon, Province of Cagayan, For. Bur. 14736 Darling: Province of Ilocos 
Norte, For. Bur. 13998, 14004 Merritt & Darling: Province of Ilocos Sur, For. 
Bur. 5644 Klemme, For. Bur. 7 111 Klemme, April 1907, in flower: Province of 
Abra, For. Bur. 14517, 14557, 14558 14621 Darling: Province of Pangasinan, 
For. Bur. 8287 Curran & Merritt, For. Bur. 13455 Medina, For. Bur. 14365 
Villamil: Province of Nueva Vizcaya, For. Bur. 10902 Curran, For. Bur. 14860 
Darling: Province of Nueva Ecija, For.. Bur. 8481 Curran, For. Bur. 22183 Al- 
varez: Province of Tarlac, Vidal 87: Province of Zambales, Merrill 1763 Garcia, 
Peb. 1903, in fruit, Merrill 1749 Garcia, April 1903, in fruit, Merrill 2935 Irey, 
May 1903, in fruit, For. Bur. 3228 Maule, Nov. 1904, in fruit, For. Bur. 5814, 
5877, 7016 Curran, For. Bur. 8418 Curran <& Merritt, For. Bur. 19467 Agama: 
Province of Bataan, Merrill 1518 (type number of A. calophylla Perk.), 1475 
Garcia, Jan. 1903, in fruit, Merrill 3154, Oct. 1903, in fruit, For. Bur. 488, 593 
