PHILIPPINE GYMNOSPERMS. 
171 
P. khasya F.-Vill. Noviss. App. (1883) 212; Merr. in For. Bur. Bull. (Philip.) 
1 (1903) 15; non Royle ex Gord. in Lond. Gard. Mag. 16 (1840) 8. 
P. timoriensis Loud. ? Arb. Brit. 4 : 2269. 
Trees, 10-25 m tall and sometimes 75 cm in diameter. Leaves in 
clusters of three, surrounded by a rather chaffy and persistent sheath 
which is sometimes as much as 2 cm long but usually is much shorter. 
Leaves long, flaccid, compressed, 3-sided, with marginal resin-canals, 
18-20 cm long, 0.6-1 mm broad. Male aments numerous, thick, dense, 
cylindraceous, obtuse, 18-22 mm long, 3.5-4 mm broad; antheriferous 
bracts suborbicular ; anthers crested. Cones 2 or 3, verticillate, subter- 
minal, the younger ones oblong on erect . branches, the adults on short 
horizontal branches or subpendulous, ovate, conical, obtusely straight or 
curved, short stalked, deflexed, 5-10 cm long, 3-6.5 cm in diameter; 
falling when mature or persistent on the branches; cone-scales thick, 
with a tumid apophysis, which is broader than long, and an elliptic umbo. 
Meristele elliptic. Fibro-vascular bundle simple. Seed obovoid-conic 
with large wing which drops off as the seed dries. Wing clear, occasion- 
ally streaked or mottled with darker line’s. Seed pale-straw-color or pur- 
plish, often of light color with splotches of brown or purple 5-7 mm 
long, 2.5-3 mm in greater and 1.5-2 mm in lesser diameter. Extreme 
length of wing 2 cm, extreme breadth of wing 8 mm. In order to get 
some idea of the range of variability in size and shape of cones, 115 adult 
cones from one locality in Benguet were measured. The length of these 
varied from 5 to 8.4 cm, the width (open) from 4 to 6.2 cm. The 
shape varied from narrowly cylindric-conic to broadly ovoid-conic. Cone 
scales occasionally with the apophysis prolonged forward into a more or 
less spiny point, or apophysis smooth in front. TJmbo small, deciduous 
or sometimes persistent. The cones seem to take three years to mature. 
This pine shows a striking resemblance in habit to P. ponderosa Dougl. 
of the western United States. 
The wood is used a good deal locally in northern Luzon. The resin 
has been studied as a possible commercial source of turpentine ; but it 
does not seem promising, because of the scattered nature of the stand. 
The tree is very common in the mountains of northern Luzon. 
Luzon, Province of Ilocos Sur, For. Bur. 5652 Klemme: Province of Abra, 
Bur. Sci. 7113 Ramos, For. Bur. 14616 Darling: Subprovince of Lepanto-Bontoc, 
For. Bur. 11262 Klemme, For. Bur. 10969 Curran, Vanoverbergh 185: Subprovince 
of Benguet, Ahern 830, 831, 832, 833, Scheerer, Ahern 852, Lardizibal, Topping 
122, 123, m, Merrill 1160, 1161, 1162, 1163, 1164, 1165, Bryant, For. Bur. 
978, 979 Barnes, Ebner 6390, Williams 1205, 989, For. Bur. 5068, 5144, 5145, 
5203, 10842, 10872, 10918 Curran, Bur. Sci. 2827, 2865 Hearns, For. Bur. 9639 
ZschoJclce, For. Bur. 18002, 18005 Merritt, For. Bur. 18065, 18186, 18202 Curran, 
Merritt & Zschokke, Bur. Sci. 8409, 8899 McGregor, Bur. Sci. 12908 Fenix: 
Province of Pangasinan, Bur. Sci. 8290 Ramos: Province of Zambales, Merrill 
2116 Irey, Merrill 2978 Garcia, Dec: Phil. For. FI. 76 Merrill, For. Bur. 7000, 
