xiii, c, i Merrill: Philippine Plants, XIII 39 
diametro; capsulis circiter 1 cm longis et 1.8 cm latis, inaequi- 
lateraliter 3-alatis. 
A subglabrous herb, the stems creeping, reddish-brown when 
dry, about 1 cm in diameter, glabrous ; stipules deciduous, broadly 
ovate, acuminate, sparingly ferruginous-ciliate, about 1 cm long. 
Leaves prominently peltate, the petiole inserted 2 to 4 cm from 
the base of the leaf, membranaceous, somewhat oblique, ovate to 
oblong-ovate, 15 to 20 cm long, 10 to 12 cm wide, base broadly 
rounded, apex acute or somewhat obtuse, margins subentire, not 
at all lobed, with a fringe of scattered, tooth-like, short cilia, 
both surfaces with widely scattered, short hairs, ultimately 
glabrous or nearly so ; basal nerves radiate, about 9, prominent, 
the reticulations very prominent on the lower surface; petioles 
12 to 15 cm long, glabrous or with very few, widely scattered, 
short hairs. Inflorescences 25 to 35 cm long, dichotomous, few- 
flowered, sparingly ciliate with short, pale, spreading, scattered 
hairs, the flower-bearing part about 10 cm long. Staminate 
flowers white or slightly pink, about 2 cm in diameter, the sepals 
elliptic-ovate, rounded. Capsules about 1 cm long and 1.8 cm 
wide, base rounded, apex subtruncate, one wing very much larger 
than the other two and about 1 cm in width, the other two 3 
to 4 mm wide. 
Luzon, Tayabas Province, Umiray River, Bur. Sci. 2905 J Ramos & 
Edano, June 3, 1917, on ledges and steep slopes in forests along the river. 
This strongly characterized species is one of the few known represen- 
tatives of the section Diploclinium with peltate leaves. It is readily dis- 
tinguished from our peltate-leaved species, Begonia hernandioides Merr., 
B. rufipila Merr., and B. ELMEBI Merr. [ B . peltata Elm. Leaf!. Philip. Bot. 
7 (1915) 2556, non A. DC., nec Hassk., nec Otto & Dietr.] by being nearly 
glabrous, the few, widely scattered hairs on the leaves and inflorescences 
scarcely exceeding 1 mm in length. 
BEGONIA APAYAOENSIS sp. nov. § Petermannia. 
Species B. brevipes Merr. similimis, differt floribus fructibus- 
que multo majoribus. Herba erecta, ramosa, usque ad 45 cm 
alta, perspicue ferrugineo-pubescentibus ; foliis inaequilateraliter 
obovatis, in siccitate brunneis, brevissime petiolatis, usque ad 9 
cm longis, acuminatis, basi angustatis, oblique cordatis, margine 
grosse et irregulariter dentato-lobatis et denticulatis ; inflores- 
centiis terminalibus, 3 ad 5 cm longis, paucifloris; floribus 9 
5-meris, sepalis late ovatis, obtusis, 13 mm longis; sepalis $ 2, 
9 similis; capsulis circiter 2 cm longis et latis, apice truncatis, 
deorsum angustatis et subacutis, aeq'ualiter 3-alatis. 
An erect branched herb about 45 cm high, the lower parts of 
the stems terete, somewhat decumbent and roofing, dark-brown, 
