400 MERRILL. 
from Singapore, Borneo, or Java: see Merrill, This Jmirnal 4 (1909) Bot. 149, 
sub Loranthus retusus Jack. 
The section Baryandra A. DC, is based solely on Begonia ocoysperma, but I 
can see no valid reason for making a section for this species distinct from 
DiploclinUitn. The species is more robust than are the others of the section 
Diploclinium, but in all ess^tial characters appears to me to be quite referable 
to that section. Begonia oxyspenna and B. calcicola are closely allied, and both 
have scattered, fimbriate-eiliate paleae, these being the only two Philippine 
species known to me that possess this character. 
47. Begonia calcicola sp. nov. 
4 
Herba, caulibus crassis, rhizomate stipulis magnis membranaceis 
bninneis usque ad 2.5 cm longis plus minus ciliatis obtecto; petiolis 
usque ad 25 cm longis, plus mimis fimbriato-paleaceis ; foliis oblique 
ovatis, usque ad 20 cm longis, aeuminatis,.basi subaequilateraliter cordatis ; 
pedunculis quam petioli longioribus, supra diffuse ramosis; floribus cir- 
citer 12 mm diametro; capsulis inaequaliter 3-alatis, apice truncatis, 
basi rotundatis, circiter 12 mm latis, 8 mm longis. 
Herbaceous, the stem creeping, stout, nearly 1 cm in diameter wlion 
dry, excluding the stipules, dark-brown, covered witli numerous, membra- 
naceous, b^o^v■n, ovate to oblong-ovate stipules 2 to 2.5 cm long, usually 
about 1 cm wide, cleft at the apex, tlie margins more or less fimbriate, 
• the rootlets also very abundant. Leaves membranaceous, brownish when 
dry, obliquely ovate, 10 to 20 cm long, the base prominently and suh- 
equally cordate, the lobes broad, rounded, the sinus 1.5 to 3 em deep, 
open, the apex lateral, acuminate, the margins subentire or obscurely 
undulate-repand, the nerves on both surfaces with scattered, stout, 
usually more or less curled, 1)rown hairs; petioles at least 20 cm long, 
Willi numerous, scattered, brown, slender, more or less fimbriate paleae 
up to 5 mm in length. Peduncles longer than the petioles, glabrous or 
slightly brown-ciliate, up to 45 cm long, ^tout when fresh, dichotomously 
and rather diffusely branched. Flowers pink or white, the staminate 
and pistillate ones in the same inflorescence. Pistillate flowers: Pedicels 
slender, 10 to 13 mm long. Sepals two, suborbicular or orbicular-obo- 
vatc, 5.5 to G mm in diameter. Petals two (sometimes only one), mucli 
narrower, narrowly oblong-obovate, about 5.5 mm long, 2.5 mm wide. 
Style less than 3 mm long, 3-cleft, the branches forked, the stigmas 
spirally arranged. Staminate flowers slightly larger than the pistillate 
ones, the sepals and petals similar but slightly larger. Stamens about 
35; filaments about 1 mm long, more or less united; anthers oblong- 
obovoid or obovoid, blunt, less than 1 mm long. Capsule obovoid, about 
12 mm in diameter at the apex, 8 mm long, the apex trancate, the base 
rounded, unequally 3-winged, the wings reticulate, one 6 to 7 mm wide at 
the apex, the other two about 3 mm in width ; placentas 2-lamellate. 
Luzon, Province of Rizal, Montalban, MerriU 7062, January, 1910 (type), in 
fruit, Copeland s. n., September, 1908. 
