XII, C, 6 Merrill: New Philippine Melastomataceae 847 
An erect entirely glabrous shrub about 1 m high, the branches 
pale, terete, the branchlets very slender, 1 to 2 mm in diameter. 
Leaves ternate, membranaceous, olivaceous and somewhat shin- 
ing when dry, oblong, 3 to 5 cm long, 1.2 to 1.8 cm wide, nar- 
rowed below to the acute base and above to the blunt-acuminate 
apex, the midrib distinct, the lateral nerves and reticulations 
entirely obsolete; petioles slender, 2 to 4 mm long. Inflores- 
cences lateral, axillary, solitary, few, the peduncles about 8 mm 
long, with up to three subumbellately arranged flowers, or the 
flowers sometimes solitary, the slender pedicels about as long 
as the peduncles. Flowers white, 5-merous. Calyx cup-shaped, 
truncate, about 4mm long. Petals about 8 mm long. 
Luzon, Apayao Subprovince, Mount Sulu, Bur. Sci. 28861 Fénix, May 22, 
1917, in damp forests on rocky slopes, altitude apparently about 800 
meters. ee 
A most characteristic species not at all closely allied to any other described 
Philippine forms, although in texture of its leaves and in the nerves and 
reticulations being entirely obsolete it resembles Medinilla benguetensis Elm. 
-MEDINILLA PANAYENSIS sp. nov. 
Frutex glaber, 2 m altus; ramulis 4-angulatis, nodis barbatis; 
foliis elliptico-ovatis, oppositis, petiolatis, chartaceis, 5-pliner- 
viis, basi acutis, apice acuminatis, usque ad 20 cm longis; inflo- 
rescentiis terminalibus, amplis, pedunculatis, paniculatis, folia 
subaequantibus, bracteis bracteolisque nullis; floribus 5-meris. 
An erect shrub about 2 m high, glabrous except the densely 
setose-barbate nodes. Branches obscurely 4-angled, stout, the 
branchlets rather sharply 4-angled and sometimes very narrowly 
4-winged. Leaves chartaceous, elliptic-ovate, opposite, about - 
equally narrowed at both ends, the base acute, the apex acumi- 
nate, 15 to 20 cm leng, 8 to 10 cm wide, somewhat brown when 
dry, slightly shining, the lower surface very slightly paler than 
the upper, with two pairs of prominent nerves, the outer pair 
leaving the midrib 1 to 1.5 cm above the base, evanescent at 
the middle or above, the inner pair leaving the midrib at from 
2.5 to 3 em above the base, anastomosing with the midrib at 
the apex, the transverse veinlets slender, distant, obsolete or 
nearly so on the lower surface, evident on the upper surface; 
petioles stout, 2 to 4cm long. Inflorescence terminal, peduncled, 
ample, paniculate, about as long as the leaves, the rachis and 
branches, when fresh, waxy-white, the bracts and bracteoles 
wanting, or small and very early deciduous. Flowers 5-merous, 
pink. Calyx cup-shaped, about 5 mm long and wide, truncate. 
Petals 5, 10 mm long. Stamens 10, 5 slightly shorter than the 
others; filaments 4 to 5 mm long; anthers narrowly lanceolate, 
