16,6 Merrill: Philippine Euphorbiaceae, III 569 
in its leaves being entirely glabrous on the upper surface; it 
seems to be more closely allied to the latter. 
TRiGONOSTEMON ANOMALUS sp. nov. 
■Frutex circiter 8 m altus, inflorescentiis parcissime hirsutis 
exceptis glaber; foliis submembranaceis, oblongo-ovatis, usque 
ad 18 cm longis, longe acuminatis, integris, nervis utrinque cir- 
citer 7 ; inflorescentiis axillaribus, paucifloris, 1 ad 2 cm longis, 
racemosis vel corymbosis ; floribus S magis numerosis, sepalis 5, 
ellipticis, circiter 3 mm longis, integris, petalis bifidis, quam 
sepalis brevioribus latioribusque, glabris; floribus $ paucis, 
longe pedicellatis, sepalis 5 mm longis, petalis nullis. 
A shrub about 8 m high, entirely glabrous except for the very 
slightly hirsute inflorescence. Branches slender, terete, reddish 
brown. Leaves alternate, oblong-ovate, membranaceous, 7 to 
18 cm long, 3.5 to 6.5 cm wide, pale or somewhat olivaceous 
when dry, somewhat shining, entire, base acute, apex long and 
slenderly acuminate; lateral nerves about 7 on each side of 
the midrib, slender, distant, curved, the reticulations lax, subob- 
solete; petioles 2 to 7 mm long. Inflorescence axillary, 1 to 2 
cm long, few-flowered, racemose on- cymose. Female flowers 
apparently 1, few, or perhaps none in some inflorescences, their 
pedicels about 1.5 cm long, thickened upward. Sepals '5, im- 
bricate, glabrous, oblong-elliptic, obtuse, 5 mm long, 3 mm wide. 
Petals none (or fallen). Ovary ovoid, glabrous, about 2 mm 
in diameter, 3-celled, cells 1-ovuled; styles 3, about 1 mm long, 
recurved. Male flowers more numerous than the females, their 
pedicels 5 to 6 mm long, the buds globose. Sepals of nearly 
mature buds 5, eglandular, imbricate, elliptic, rounded, concave, 
about 3 mm long, 2.2 mm wide, glabrous or externally with very 
few, scattered hairs. Petals 5, imbricate, 2 to 2.5 mm long, 
3 to 3.5 mm wide, cleft to about the middle by a broad sinus, 
the lobes rounded. Stamens 3; anthers sessile, entire, 2-celled, 
about 1 mm long, longitudinally dehiscent. 
Mindanao, Zamboanga District, Naganaga, For. Bur. 22018 
Villamil, June 2, 1914, on ridges, altitude about 75 meters, the 
flowers red. 
The species is placed in Trigonostemon although it is anomal- 
ous in that its pistillate flowers apparently have no petals ; as I 
had for examination but a single pistillate flower, however, it 
is possible that the petals had already fallen. Otherwise the 
species is distinguished by its short, racemose or corymbose in- 
florescences. It may belong in the section Tylosepalum. 
