16,6 Merrill: Philippine Euphorhiaceae, 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 o magis numerosis, sepalis 5, 

 ellipticis, circiter 3 mm longis, integris, petalis bifidis, quarh 

 sepalis brevioribus latioribusque, glabris; floribus 5 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, rre.r.branaceous, 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 or 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. 



