230 ALABASTRA BORNEENSIA. 



This species differs from Tristania oborata, R. Br., in its 

 smaller, narrower, differently shaped, not retuse leaves, in its 

 sparingly pubescent, not glabrous calyces, its more numerous 

 stamens, and its minutely crenulate, not sharply toothed 

 petals. From T. merguensis, Griff., it differs in its much 

 smaller flowers and in numerous other characters. 



Tetraeugenia, genus novum. 



( M yrtoideae-M yrteae-E ugeniinae ) . 



Cali/ci* tubus oblongo-obovoideus, deorsum angustatus, 

 supra ovarium leviter productus ; limbi segmenta 4, minuta. 

 Peiala conniventia et in calyptram connata. Stamina 4, libra, 

 filamentis brevissimis, calycis limbum haud superantia; an- 

 therae parvae, loculis longitudinaliter dehiscentes. Ova- 

 rium 2-loculare. Arbor (vel frutex) glabra. Folia opposita, 

 glanduloso-punctata, penninervia, nervis distantibus, pro- 

 minentibus, arcuato-anastomosantibus. Flores minimi axillares 

 terminalesque, fasciculati vel in cymis depauperatis dispositi. 



Tetraeugenia caudata, sp. nov. 



Arbor (vel frutex) glabra, ramis ramulisque tennibus, 

 teretibus : foliis papyraeeis, ovato-ellipticis, in siccitate oliva- 

 ceis, nitidis, usque ad 11 cm. longis, pellucido-punctatis, basi 

 acutis, apice longe tenuiterque caudato-acuminatis, nervis 

 utrinque 8 ad 10 subtus prominentibus distantibus arcuato- 

 anastomosantibus; floribus paucis, minutis, axillaribus ter- 

 minalibusque, oblongo-obovoideis, 2.3 ad 3 mm. longis, fasci- 

 culatis vel in cymis valde depauperatis dispositis : cahjce minute 

 4-denticulato. 



A glabrous tree or shrub, the branches and branchlets 

 slender, terete, 1 to 1.5 mm. in diameter, the former pale, the 

 latter brown and sometimes slightly flattened at the nodes. 

 Leaves opposite, chartaceous, olivaceous, somewhat shining and 

 of about the same color on both surfaces when dry. ovate- 

 elliptic, T to 11 cm. long, 3 to 4.5 cm. wide, base acute or some- 

 what acuminate, apex slenderly caudate-acuminate, the acumen 

 1.5 to 2.5 cm. long, blunt, minutely pellucid-punctate, the 

 glands evident on the upper surface, obsolete on the lower sur- 

 face : lateral nerves 8 to 10 on each side of the midrib, pro- 

 minent on the lower surface, straight, anastomosing with the 

 somewhat arched and equally prominent marginal nerves 3 to 

 1 mm. from the edge of the leaf; petioles 1 em. long or less. 

 Flowers axillary and terminal, few, fascicled or in very de- 

 pauperate cymes, oblong-obovoid, 2.5 to 3 mm. long, buds 

 rounded, tapering below, the subtending bracteoles ovate-lan- 

 ceolate, acuminate, about 1 mm. long. Calyx-teeth -I, minute. 



Jour. Straits Branch 



