264 
FOXWORTHY. ' 
Leaves oval 12 to 18 cm long, 7 to 10 cm wide, shortly acuminate, 
secondary nerves about 12 arcuate-ascending, rather prominent on under 
side of leaf, the younger parts minutely lepidote. 
Mindanao, District of Zamboanga, For. Bur. 9133, 9374 Whit ford & Hutchin- 
son, Dec. 1907, Jan. 1908. 
Sect. II. Petalandra Iiassk. (genus) . 
Secondary nerves conspicuous, not approximate, not rnoTe than 20 
pairs ; tertiary nerves generally parallel, approximate, but not conspicuous. 
Stamens 10, on broad short filaments, which are sometimes monadelphous. 
Stylopodium either wanting, or a fleshy rim or tube on the top of the 
truncated ovary. 
The only Philippine species which we know to belong to this section 
is the following. 
8. Hopea acuminata Merr. in Bur. Govt. Lab. Publ. (Philip.) 29 (1905) 
30; Philip. Journ. Sci. 1 (1906) Suppl. 98; Foxworthy in Philip. Journ. Sci. 2 
(1907) Bot. 389, 4 (1909) Bot. 514, pi. 27, f. 68; Whitford in Philip. Journ. 
Sci. 4 (1910) Bot. 703, Philip. Bur. For. Bull. 10 2 (1911) 75, pi. 80. 
A tree reaching a height of 40 m, with broadly lanceolate, narrowly 
acuminate, glabrous leaves, 8 cm long or less, and small flowers in uni- 
lateral racemes, which are arranged in terminal and axillary panicles. 
Branches nearly black when dry, glabrous, striate. Leaves 4 to 8 cm long, 
2 to 3 cm wide, submembranaceous, shining above, the base inequilateral, 
rounded at least on one side of the lamina, the apex long-slender- 
acuminate; nerves 8 to 10 pairs, rather prominent beneath; petioles 5 to 8 
mm long, rugose, glabrous. Inflorescence grayish-stellate-pubescent, the 
panicles 5 to 6 .cm long or less, the spicate branches 1.5 cm long or less. 
Calyx rusty-pubescent, the sepals 5, imbricate, the outer two slightly 
larger than the inner. Petals slightly pubescent on the outside, falcate, 
4 mm long, 1.8 mm wide, obtuse. Stamens 10; filaments thick; anthers 
0.4 mm long, the single appendage slender, equaling the anther in length. 
Ovary glabrous, 3-celled, each cell 2-ovuled; style short; stylopodium 
none. Pruit glabrous, the two wings oblong, about 2 cm long, 5 mm wide, 
the apex rounded. 
A tall tree, with a slender, straight trunk, growing in the hill forests 
from an altitude of 100 to about 800 m above the sea. 
Luzon, Province of Cagayan, For. Bur. 17209 Curran: Province of Ilocos Norte, 
For. Bur. 13869, 13874 Merritt & Darling: Province of Nueva Vizcaya, For. Bur. 
10887 Curran, For. Bur. 18028 Merritt: Province of La Union, For. Bur. 13002 
Faraiso: Province of Pangasinan, For. Bur. 14357 Villamil: Province of Tarlac, 
For. Bur. 15405 Agama: Province of Nueva Ecija, For. Bur. 22387, 22390 Alvarez: 
Province of Bulacan, Bur. Sci. 12269 Foxworthy : Province of Bataan, For. Bur. 
786 Borden, May 1904, in flower, (type), Whitford 335, May 1904, in flower, 
For. Bur. 1175, 1245 Borden, For. Bur. 1592 Borden, Aug. 1904, in fruit, Merrill 
3864, Aug. 1904, in fruit, Bur. Sci. 1563 Foxicorthy, For. Bur. 7497, 17595 Curran, 
