314 The Philippine Journal of Science wis 



BEGONIACEAE 



BEGONIA Linnaeus 

 BEGONIA EDANOII sp. nov § Diploclinium. 



Species B. aquatae affinis, differt capsulis multo majoribus, 

 apice truncatis, basi late rotundatis, usque ad 1.8 cm. longis et 

 1.5 cm latis; petiolo circiter 5 mm longo. 



A slender, scandent, glabrous plant growing on tree trunks. 

 Leaves inequilateral, oblong-ovate, membranaceous, olivaceous, 

 and shining when dry, 4 to 5 cm long, 1.5 to 2 cm wide, base 

 rounded or obtuse, not at all cordate, apex acuminate, somewhat 

 falcate, margins rather coarsely and irregularly toothed ; petioles 

 about 5 mm long. Capsules axillary, usually in pairs, equally 

 3-winged, truncate at the apex, scarcely narrowed below, the 

 base broadly rounded; up to 1.7 cm long and 1.5 cm wide; 

 pedicels slender, about 1.5 cm long. 



Luzon, Rizal Province, Mount Susong Dalaga, Bur. Sci. 29374 Ramos & 

 Edano, August 8, 1917, in damp forests. 



This species belongs in the characteristic group of Begonia aequata A. 

 Gray, the type of which was from Mount Maquiling, the other closely allied 

 forms being Begonia wenzelii Merr., B. lagunensis Elm., and B. elegans 

 Elm. It differs from Begonia aequata in its very much larger capsules, 

 and from B. lagunensis Elm., to which it is also closely allied, in its very 

 short petioles, and somewhat smaller, distinctly differently shaped capsules, 

 which are not gradually narrowed below but which are abruptly rounded 

 at the base. 



MELASTOMATACEAE 



MEMECYLON Linnaeus 



MEMECYLON ELLIPTI FOLIUM sp. nov. § Eumemecylon. 



Arbor circiter 12 m alta, glabra, ramulis teretibus; foliis ellip- 

 ticis, sessilibus, coriaceis, usque ad 14 cm longis, utrinque rotun- 

 datis vel apice latissime et breviter acuminatis, nervis primariis 

 tenuibus, indistinctis vel interdum subobsoletis, marginalibus 

 nullis; inflorescentiis axillaribus, brevibus, 1 ad 1.5 cm longis, 

 breviter pedunculatis ; floribus confertis, calycis infundibulifor- 

 mibus, 5 mm diametro. 



A tree about 12 m high, glabrous throughout. Branches 

 terete, smooth, grayish, the branchlets brownish, terete, about 

 2 mm in diameter. Leaves opposite, sessile, elliptic, thickly 

 coriaceous, yellowish to yellowish-green or brown when dry, 

 shining, brittle, 9 to 14 cm long, 5 to 6.5 cm wide, subequally 

 rounded at both ends or the apex very broadly and shortly 

 acuminate ; primary lateral nerves about 20 on each side of the 

 midrib, slender, indistinct, sometimes obsolete or nearly so, with 



