184 
The Philippine Journal of Science 
1918 
Tarlac, Nueva Ecija, Bulacan, Laguna, Tayabas, Camarines, Albay, Sor- 
sogon. Mindoro. Leyte. Mindanao: Misamis, Davao. 
9. HOPEA MAQUILINGENSIS sp. nov. 
Arbor, H. acuminatae similis sed fructibus majoribus. 
A medium-sized or large tree. Leaves chartaceous, lanceolate- 
acuminate, glabrous above, except for occasional hairs on the 
midrib, paler and pubescent beneath, domatia in the axils of the 
lower veins, 5.5 to 9.5 cm long, 2 to 3.6 cm wide, rounded or 
subcuneate and slightly inequilateral at the base, secondary veins 
8 to 10 pairs. Petiole 6 to 9 mm long. Young twigs slender, 
dark brown. Fruit conical, about 4 mm high and about 3 mm in 
diameter, surmounted by the 0.5 mm long style.' Calyx -lobes 
densely gray-pubescent, the two long ones up to 5 cm long and 
1 cm wide, oblanceolate, pale green, with slight pubescence, prin- 
cipal longitudinal nerves about 7, transverse veins irregular and 
rather indistinct. Flowers in unilateral racemes and these in 
much branched panicles. Racemes 3 cm long or less, panicles 8 
cm long or less. Stamens 10. Anthers about 0.4 mm long, ap- 
pendage very slender, as long as the anther. Filament short and 
thick, 0.5 mm long, 0.3 mm wide. Ovary cylindric, 0.7 mm in 
diameter, 0.8 to 0.9 mm high, gray-pubescent. Style pubescent, 
slender, dark brown, 0.3 mm long. Stylopodium none. 
Luzon, Laguna Province, Mount Maquiling, For. Bur. s. n. Canacosa, 
August 1914 (type) For. Bur. 21988 and 22969 Canacosa. 
This form is a smaller tree than Hopea acuminata and has a thinner, 
lighter, less deeply furrowed bark; the leaves are rather more pubescent 
on the underside, and the fruit is much larger. 
10. HOPEA PIERREI Hance. 
Luzon: Cagayan, Pangasinan, Nueva Ecija, Zambales, Laguna, Ta- 
yabas, Camarines, Albay, Sorsogon. Polillo. Mindoro. Negros. Samar. 
Mindanao, Lanao. 
11. HOPEA FOXWORTHYI Elmer in Leafl. Phil. Bot. 4 (1912) 1469. 
Sibuyan. Mindanao, Zamboanga. 
This species differs from Hopea pierrei by its smaller leaves without 
domatia and its pale-greenish fruits. 
12. HOPEA GLUTINOSA Elmer in Leafl. Phil. Bot. 4 (1912) 1470. 
Sibuyan. Luzon, Laguna. Panay, Capiz. 
This is most closely related to Hopea pierrei, from which it differs by its 
larger, glutinous fruits. 
13. HOPEA MALI BATO Foxw. in Leafl. Phil. Bot. 6 (1913) 1953. 
Mindanao, Agusan. 
This is most closely related to Hopea beccariana Burck, from which it 
differs in the greater size of the leaves and the fruits and in the greater 
number of veins on the larger fruit wings. It differs from Hopea pierrei 
