PHILIPPINE SPECIES OF BEGONIA. 387 
conjunction with careful field observations, may lead to a different disposition of 
some of the specimens cited. 
25. Begonia quercifolia A. DC. in Ann. Sci. Nat. IV 1 1 (1859) 129, Prodr. 
15 1 (1864) 320; F.-Vill. Nov. App. (1880) 99; Vid. Phan. Cuming. Philip. 
(1885) 116, Rev. PI. Vase. Filip. (1886) 143. 
Samar, Cuming 1696 in herb. Kew. 
I am disposed to refer to this species the following specimens, although most 
of them have somewhat larger leaves than has the .type: 
Luzon,, Province of Tayabas, Kabibihan, Bur. Sci. 13237 Ramos; Anoling 
River, Bur. Sci. 9326 Robinson, August, 1909. Mindoro, Baco River, McGregor 
310. Mindanao, Lake Lanao, Camp Keithley, Mrs. Clemens 31^, leaves purple 
when dry. 
26. Begonia bolsteri sp. nov. 
Herba glabra, caulibus inferne prostratis vel subprostratis, radicantibus 
superne suberectis, eirciter 20 cm altis, vix ramosis; foliis membranaceis, 
usque ad 12 cm longis, oblique oblongo-ovatis, basi valde inaequilateraliter 
cordatis, apice longe acuminatis, margine denticulatis, vix lobatis; in- 
florescentiis axillaribus, pedunculatis, floribus inferioribus ' femineis, 
superioribus masculinis, his sepalis 2, petalis nullis ; capsulis aequaliter 
3-alatis, eirciter 1.2 cm longis, utrinque retusis vel subtruncatis. 
A glabrous herb, the stems unbranched, prostrate or subprostrate below 
and rooting at the nodes, the ends erect or suberect, 20 cm higher or 
less, the internodes elongated. Leaves membranaceous, oblong-ovate or 
narrowly ovate, 6 to 12 cm long, 3 to 6 cm wide, very strongly and 
obliquely inequilateral, the base prominently cordate, both lobes rounded, 
the apex rather slenderly long-acuminate, the margins denticulate or 
ciliate-denticulate, not lobed, but sometimes slightly repand ; basal nerves 
7 or 8; petioles 2 to 4 cm long; stipules brown, membranaceous, ac- 
uminate, oblong-ovate, about 8 mm long. Inflorescence axillary, solitary, 
the peduncles about 4 cm long, the lower flowers pistillate, the upper 
ones staminate. Staminate flowers pink. Sepals 2, orbiCular-reniform, 
5 to 6 mm in diameter, the pedicels slender, 4 to 5 mm long. Petals 
none. Stamens 15 to 25, the filaments 1 to 1.5 mm long; anthers nar- 
rowly obovoid, truncate or obtuse, about 1 mm long. Bracteoles ovate, 
about 3 mm long, frequently wider than long, deciduous. Pistillate 
flowers with pedicels 5 to 8 mm long, the bracts broadly ovate, 3 to 3.5 
mm long, the lobes 4, the two outer ones slightly exceeding the inner 
ones, broadly ovate, obtuse, 5 to 6 mm long. Styles 3, nearly free, 
about 4 mm long, forked above, the stigmas spiral. Capsules 10 to 12 
mm long, about 1.5 cm wide, the apex truncate or somewhat retuse, the 
base rounded, equally 3-winged, the wings broadly rounded, 4 to 6 mm 
wide. Placentas 2-partite. 
Mindanao, Province of Surigao, Bolster 310, April, 1906, said by the collector 
to be common in damp shaded places at an altitude of about 75 m. 
