294 The Philippine Journal of Science 1920 
bracts, 8 to 10 mm in length and about 1.5 mm wide. Male 
flowers pinkish-white, their pedicels up to 10 mm in length. 
Sepals 2, elliptic-ovate, slightly ciliate, about 5 mm long. Petals 
2, narrowly elliptic-oblong, about 3.5 mm long, 1.5 mm wide. 
Capsules solitary, axillary, including the wings 10 to 12 mm 
long and 12 to 15 mm wide, the apex truncate, the outer angles 
acute, slightly narrowed below to the rather broadly rounded 
base, sparingly ciliate. 
Siargao, Bur. Sci. 3J/.870 Ramos & Pascasio, May 27, 1919, 
among bowlders on forested slopes at low altitudes. 
A species similar and distinctly allied to Begonia urda- 
netensis Elm. but with larger leaves, quite different indumentum, 
and narrower stipules. 
THYMELAEACEAE 
GYR1NOPSIS Decaisne 
GYRINOP31S ACUMINATA sp. nov. 
Frutex, fioribus exceptis glaber, foliis anguste lanceolatis ad 
lanceolatis, 12 ad 20 cm longis, tenuiter acuminatis, basi cunea- 
tis, nervis numerosis, dense dispositis ; fioribus axillaribus, fasci- 
culatis, leviter pubescens, circiter 5 mm longis; capsulis circiter 
1 cm longis, rugosis, obovoideis. 
A shrub or small tree, entirely glabrous except the flowers, 
the branchlets usually reddish-brown. Leaves narrowly lan- 
ceolate to lanceolate, 12 to 20 cm long, 2.5 to 4.5 cm wide, nar- 
rowed to the cuneate base and to the slenderly acuminate apex, 
greenish or olivaceous and shining when dry. The primary 
lateral nerves scarcely distinguishable from the densely arranged 
secondary ones; petioles 5 mm long or less. Flowers axillary, 
fascicled or in very greatly reduced cymes, their pedicels about 
2.5 mm long. Perianth slightly pubescent, about 5 mm long, 
the lobes 5, oblong, obtuse, about 1.5 mm long. Stamens 10 in 
a single row near the throat, 5 alternating anthers slightly longer 
than the others. Ovary oblong-ovoid, narrowed upward, pu- 
bescent ; style very short. Capsules yellowish, rugose when dry, 
1 cm long or less, 2-valved, usually containing a single, sub- 
globose, black seed, 5 to 6 mm in diameter. 
Dinagat, Bur. Sci. 35158 Ramos & Pascasio (type), May 13, 
1919. Bugas Grande, Bur. Sci. 35055 Ramos & Pascasio, June 
11, 1919, in forests at low altitudes. 
This species is closely allied to Gyrinopsis brachyantha Merr., 
from which it is distinguished by its longer, slenderly acuminate, 
differently shaped leaves. 
