18 
posite, glabrous, linear, oblong or lanceolate, 7 to 10 cm. long 
including the 1 cm. long glabrous petiole, 1.5 to 2.5 cm. 
wide, subcoriaceous, apex acuminate, base attenuate, obsc- 
urely 5 to 7-nerved; stipules glabrous, broad at base, divided 
into many slender glabrous laciniate shreds. Inflorescence 
slenderly pedunculate, glabrous, cymosely umbellate, not ex- 
ceeding the leaves, axillary or subterminal, more or less 
congested; branchlets subtended by glandular tipped stipules 
and foliaceous bracts; flowers usually in clusters of 1 to 3, 
subsessile; calyx glabrous, 2 mm. long; its 4 segments persis- 
tent, roundly obtuse, 0.5 mm. long; corolla 4 mm. long, gla- 
brous on the exterior, tubular at the base, subcampanulate 
toward the apex, half divided into 4 oblong and obtuse 
segments; its lobes only sparsely pubescent on the inner 
surface; stamens 4, inserted upon the tube 1 mm. below the 
throat and alternating with the segments; filaments very 
short; anthers 1 mm. long; style glabrous, slightly exerted, 
its apex mitre shaped. 
Type specimen collected by A. E. Yoder on Mount Mi- 
diaas, Province of Antique, Panay, April, 1905. 
++ ++ Stipules 3 to 5-pectinate. 
= Corolla tubular. 
4. O. benguetense n. sp. A lax profusely branched 2 m. 
high sbrub; its ultimate branches angular and with numerous 
nodules of leaf scars. Leaves membranous, glabrous, usually 
clustered toward the ends of the twigs, but soon deciduous, 
1 to 1.5 em. wide, 3 to 5 em. long including the 5 mm. 
long petiole, lanceolate, the acuminate apex frequently some- 
what curved, the 3 to 5 pairs of faint nerves anastomosing 
above the middle; stipules pubescent, 3 to 5-forked or pec- 
 tinate, its connate coriaceous base persistent and becoming 
glabrous. Flowers in subterminal axillary cymes, shorter than 
the leaves; ascending peduncles and slender pedicels glabrous, 
subtended by foliaceous bracts; calyx smooth, turbinate; its 
4 green segments oblong, 2 mm. long and with obtuse apex; 
corolla tubular, 8 mm. in length including the lobes, pink 
. color, glabrous on the exterior; segments 4, obtuse, 3 mm. 
. long, smooth on the ventral surface above the middle, re- 
