83 
Dioecious. 8t;imiiiate inflorescence axillary, spicate, 10 cm. long or less, solitary 
or fascicled, glabrous or nearly so. Di'acts subrenif'orm to ovate, glabrous, about 
1 nun. long, apiculate, each subtending a solitary Hower, the caly.x lobes very 
small, 3, lanceolate, acuminate, less than 1 mm. long. Stamens 3; filaments 
glabrous, 1.5 mm. long; anthers didynamous, aboiit 1 mm. thick, O.S mm. long. 
Pistillate inllorescence similar to the staminate but shorter, few flowered. 
Sepals 3, broadly triangular ovate, acute, about 1 mm. long slightly glandular 
at the apex. Ovaiy ovoid, glabrous, 3-eelled, each cell 1-ovuled; styles 3, stout, 
recurved, slightly united below, about equaling the ovary. Fruit dry, dehiscent, 
3-celled, glabrous, about 1 cm. in diameter, the valves somewhat twisted in 
dehiscence, the seed globose, smooth, mottled, about 4 mm. in diameter. 
(138 Barnes) January; (112, 1137 Whitford) IMay, March; (1358, 1359, 2749, 
2934 Borden) July, March; (27(i8 Mcijer) February; (2529. 3189 Merrill) .Tune, 
October; (tiOOl Leiberg) .Tuly. In forests 300 to 1,000 m. 
27. HOMALANTHUS J uss. ' 
1. H. populneus (Geisel.) Pax in Engl, und Prantl. Nat. Ptlanzenfam. 3 
(1890) 5: 90. 
(478, 1281 Whitford) .Inly, May; (1209 Borden) June. In open forests 100 
to 500 m. Malaya. 
28. SAPIUM P. Br. 
2. Sapium lateriflorum Merrill, sp. nov. 
A tree reaching a height of 25 m., momjecious. Branches usually slender, 
brown or gray, glabrous. Leaves alternate, elliptical ovate to elliptical oblong, 
coriaceous, glatirous, entire, slightly shining, 7 to 14 cm. long, 3 to 6 cm. wide, the 
apex short, abruptly acuminate, the base acute, slightly glandular auriculate; pri- 
mary nerves (i to 7 each side of the midrib, distant, curved, not prominent, the 
reticulations lax, lather obscure; petioles 1 to 3 cm. long, glabrous. Inflorescence 
lateral, axillary or extra-axillary, in simple or paniculate spikes or spicate 
racemes, glabrous, 3 to 8 cm. long, the staminate llowers above numerous, the 
pistillate below in the same inllorescence, few, pedicellate, the basal portion of 
the racemes often rvith numerous, small imbricixted bracts. Staminate llowers 
yellow, sessile or pedicelled, fasciculate, the subtending bracts rugose, ovate, 
acuminate, about 1.5 mm. long, 2 to 4 or 5 llowers in each bract. Sepals 2, 
broadly ovate, acute or obtuse, about 1.5 mm. long. Stamens 2; filaments stout, 
about 1 mm. long; anthers 2-celled, broadly ovoid or subglobose, about 0.8 mm. 
long. Disk and petals none. Pistillate flowers few, solitary, pedicelled, at the base 
of the staminate spike or on branches from the base of the inflorescence. Calyx 
of the male. Ovary ovoid, glabrous, 2-celled, each cell 1-ovuled. Styles 2, entire, 
stout, recurved, about 1 mm. long. Fruit subglobose to obovoid, baccate, glabrous, 
inequilateral, 1-celled, 1-seeded, indehiseent, the peduncles 1.5 to 2 cm. long, the 
styles jiersistent. 
(2505 Borden) February; (338 Barnes) February. In forests 100 to 200 m. 
The followung specimens are the same: (1991 Ahern’s collector) Bosoboso, Prov- 
ince of Kizal, Luzon, November; (1080 Clarke) Island of Ticao, May. A species 
differing from typical Sapium in its lateral inllorescence. 
29. EUPHORBIA Linn. 
1. E. pilulifera Linn. Hook. f. FI. Brit. Ind. 5 (1887) 250, 
(0021 Leiberg) July; (402 Whitford) June. A weed in waste places and open 
lands below 100 m., widely distributed in the Philij)pines. Tropical and sub- 
tropical regions generally. 
