324 ROBINSON. 
Glabrous trees, attaining a height of 10 m and a trunk-diameter of 12 
cm, the ultimate branches with striate brownish or grayish-green bark: 
petioles 10 to 13 mm long; lamina chartaceous, elliptic or oblanceolate- 
elliptic, 15 to 2o cm long, 7.5 to 8.5 cm wide, acute at the base, the margins 
slightly recurved and usually slightly undulate, the apex prolonged into 
an acumen, which is more often slender and sometimes sharply acute, 
upper surface plumbeous, under surface paler and when young usually 
glaucous; pairs of lateral veins 9 to 12, all except those near the apex of 
the lamina nearly straight except close to midrib and margin, not forming 
a submarginal vein. 
F 
MiNDORO, Oamantigue, Bongabong River, Whiiford IW (type); Daihagan 
River valley, For. Bur, 3716 Merritt; . south of Lake Naujan, For. Bur. 6727 
Merritt; Puli River, For, Bur. 1220Jf Rosenhluth; growing in humid forests at 
low elevations. This approaches among Philippine species the one doubtfully 
identified as C. mijrianthus Kurz, but differs in its venation, and all our specimens 
provisionally named as C. myrianilius are too imperfect for their exact position 
to be ascertained. 
Cleistanthus mindanaensis sp. nov. 
Arbor Cleistantho isabellino Elmer affinis, sed diffcrt foliis majoribus, 
crassioribus, minus acuminatis, nervis pluribus. 
Flowers borne in axillary clusters surrounded at the base by numerous 
small ferruginous-pubescent bracts: staminatc flowers on short thick 
pedicels; calyx at first united, at full anlhcsis 2.5 mm long, divided 
nearly to the base into 5, coriaceous, cvatc, obtuse or subacute lobes; 
petals 5, 0.7 to 1 mm long, widened upward, denticulate along the upper 
margin; disk large, fleshy, entire or obscurely lobcd; androphorc wanting 
in young flowers, becoming about 2 mm long to the insertion of the fila- 
ments; filaments 5 or rarely G, 1.5 mm long; anthers ovate, up to 1.3 
mm long; rudimentary ovary sessile on the top of the androphore, ovate 
in outline, 0.8 mm long, with 3 rudimentary styles about 0.4 mm long; 
the flowers and pedicels glabrous: pistillate flowers not seen: fruitmg 
calyx and corolla similar to that of the staminatc flowers, the disk thin- 
ner; fruit apparently succulent, red, globose, seen up to 13 mm in dia- 
meter, lightly G-ridged, 3-celled, the persistent styles 3, separate, 1.5 mm 
long, shortly bifld; seeds not developed. 
A tree, 13 to 18 m high, the trunk 15 to 18 cm in diameter, the 
ultimate branches terete or at the apex somewhat angled, the bark gray 
or brownish-gray, densely and minutely pubescent toward the apex, gla- 
brescent below: petioles stout, 7 to 10 mm long, obscurely annulate, 
pubescent or glabrous; lamina coriaceous, oblong or elliptic, ^-o to 
cm long, 3 to 5.5 cm wide, the base acute, the margins entire, the apex 
forming an obtuse acumen usually about 8 mm long; upper surface 
green, shining, under surface paler when glabrcsccnt but when young 
densely covered with cinnamon-colored pubescence; veins 10 to 13 pairs. 
