404 
MERRILL. 
acuminatis, margine irregulariter acute dentato-lobatis ; floribus mas- 
culinis roseis, sepalis 2, orbicularibus, 12 ad 15 mm lougis, petalis 2, 
obovatis ; staminibus circiter 40 ; capsulis late obovatis, apice truncatis, 
inaequaliter 3-alatis, 2 cm longis, 3 ad 3.5 cm latis. 
A species most closely allied to Begonia luzonensis Warb., differing 
especially in its much larger capsules. Peduncles, petioles, both sur- 
faces and margins of the leaves with few to many slender, brown, ciliate 
hairs 3 to 5 mm in length. Leaves ovate to oblong-ovate, chartaceous 
when dry, strongly obliquely inequilateral, 15 to 20 cm long, 6.5 to 13 
cm wide, base strongly cordate, apex slenderly acuminate, margins irre- 
gularly and rather coarsely acutely toothed-lobed, the sinuses often shallow, 
rounded, or the margin on the narrow side of the leaf entire or subentire ; 
nerves 9, radiate; petioles 16 to 20 cm long. Inflorescence as long as 
the leaves, when young with many brown hairs, at maturity glabrous or 
nearly so, the peduncle up to 30 cm long, dichotomously branched at 
the apex. Male flowers pink. Sepals 2, orbicular, rounded, 12 to 15 
mm in diameter. Petals 2, obovate, 10 to 13 mm long, 8 mm wide, 
apex retuse. Stamens about 40; filaments slender, free, about 2.5 mm 
long; anthers obovate, 1 mm long. Female flowers not seen. Capsules 
very broadly obovate, unequally 3-winged, about 2 cm long, 3 to 3.5 
cm wide, the apex truncate, the base rounded or subacute, the larger 
wing 1.5 cm wide, the two narrower ones less than 1 cm wide. 
Luzon, Bontoc Subprovince, Bauco, Vanoverbergh 831, September and Nov- 
ember, 1910, along small streams, tbe first collection with male flowers, the 
second with male flowers and mature fruits. Locally known to the Bontoc 
Igorots as ganabeng. 
54. Begonia trichocheila Warb. in Perk. Frag. FI. Philip. (1904) 53. 
Luzon, Province of Rizal, Montalban, Warburg 13260, type in herb. Berol. !, 
Loher s. n., Merrill 7063, January, 1910. Possibly referable here is Bur. Sci. 
12958 Fenix, from Bauang, Union Province, Luzon, but the leaves are very 
much larger than in the type, and no fruits were collected. 
Through inadvertence the sepals and petals, in the original diagnosis, are 
described as 5 cm(!) long, and the pedicels 1.5 to 2 m(!) long, apparent 
errors in both cases, the first for mm and the second for cm. The description 
of the flowers may have been drawn up from immature plants, for on both the 
other specimens cited above, which undoubtedly represent the species, have 
thd sepals of the staminate flowers from 1 to 1.2 cm in length. 
Endemic. 
55. Begonia manillensis A. DC. in Ann. Sci. Nat. IV 1 1 (1859) 129, Prodr. 
1 5 1 (1864) 323; F.-Vill. Noviss. App. (1880) 98; Ceron Cat. PI. Herb. (Manila) 
(1892) 88. 
Luzon, Province of Rizal, Bosoboso, For. Bur. 2699 Ahern’s collector, January, 
1905; San Isidro, Bur. Sci. 73 Foxworthy, January, 1906: Province of Bulacan, 
Yoder, December, 1906: Province of Benguet, Mount Pulog, For. Bur. 16175 
Curran, Zscholclce, & Merritt, January, 1909. 
The type of this species was collected in the Philippines by Perrottet, and 
is preserved in the Herbarium of the Museum of Natural History, Paris; this 
specimen I have not seen, but the material cited above agrees well with the 
