ALABASTRA PHILIPPINENSIA, III. 
337 
Trigonostemon oblanceolatus sp. noy. § Eutrigonostemon. 
Arbuseula, praecedenti similis, floribus exeeptis minus hirsuta, sed 
differt floribus staminiferis minus numerosis, calyce hirsuto, connectivo 
magis producto, petalis purpuTeis. 
Inflorescences about 26 cm long, the rachis angled and grooved, about 
2 mm wide, densely hirsute, the flowers racemed, the pistillate solitary,, 
the staminate solitary or very few ; bracts lanceolate, 7 to 8 mm long, or 
shorter at the base and apex of the raceme, densely hirsute, usually ac- 
companied by a pair of much smaller bracts as in T. liirsutus: staminate 
flowers very shortly pedicelled; calyx deeply 5-parted, 2 mm long, or 
with the dense stiff yellowish pubescence 3 mm long, two of the segments 
lanceolate, subacute, the other three oblong-obovate, obtuse; petals dark- 
purple, free, 5, obovate, 3 mm long; disk shortly cupular, free for about 
0.4 mm; androphore 1 mm long, the anthers 3, the connective free 
nearly to the base and strongly thickened and protruding beyond the 
cells, the latter narrowly oblong, 0.5 mm long, extrorse, dehiscing long- 
itudinally; no rudimentary ovary: pistillate flowers on pedicels 9 to 10 
mm long, hirsute, apically thickened; calyx deeply 5-parted, 5 to 7 mm 
long, the greater extreme including pubescence, three of the segments 
lanceolate, subacute, the other two- membranaceous-margined, oval, obtuse ; 
disk shortly cupular, closely inclosing base of ovary; ovary densely 
pubescent, 2.5 mm long, 4 mm in diameter, 3-celled, the ovules solitary; 
syles 3, 0.8 mm long, free from one another, deeply 2-parted. 
A tree about 3 m high, its stems 5 cm in diameter, the bark dirty- 
brownish, the apices greenish, angled, very slightly hirsute: leaves alter- 
nate, simple; petioles 10 to 18 mm long; lamina submembranaceous, 
oblanceolate, 29 to 31 cm long, 9 to 9.5 cm wide, the base acute, the 
margins merely obscurely sinuate with a very few inconspicuous glands, 
the apex forming a very short acumen; both surfaces inconspicuously 
hirsute, except the densely hirsute sides of the costa of the under surface ; 
pairs of veins about 19, arched and forming a submarginal vein. 
Mindanao, District of Zamboanga, Sax River, at 150 m elevation, Williams 
2185. In the opened flowers, the calyx-segments appear valvate with the excep- 
tion of the broader ones in the pistillate flowers ; in one of these, petals were 
found loosely adhering to the sides of the ovary, which were quite similar to those 
of the staminate flowers. 
ANACARDIACEAE. 
MANGIFERA Linn. 
Mangifera verticillata sp. nov. 
Arbor magna : infloreseentiis terminalibus, composito-paniculatis, ramis 
ramulisque tomentcsis, valde tetragonis, verticillatis vel subverticillatis ; 
floribus dioicis, pentameris; staminiferorum sepalis liberis, petalis basi 
ima connatis; stamine uno, staminodiis 4; disco subnullo: foliis verti- 
