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174 MERRILL. 
axillary, solitary, the rachis emerging from between the petiole and an 
ovate, coriaceous, 5 to 7 mm long bract, the umbels 1 or 2, the terminal 
bud wanting, the peduncles to the umbels solitary, subtended by bracts, 
slender, 2.5 cm long. Staminate flowers 20 to 25 in each umbel, about 
? mm long, the perianth segments reflexed; stamens 6. Fruit globose, 
much wrinkled when dry, with from 1 to 3, more or less compressed, 4 
mm long seeds. 
MINDANAO, Lake Lanao, Mrs. Clemens 751, near streams, September, 1906: 
District of Davao, Williams 2519, March, 1905 (type). 
A species manifestly allied to Smilax bracteata Presl, but distinguished at once 
by its verruculose, but not spiny stems, larger leaves with more numerous veins, 
and larger flowers. 
ULMACEZE. 
CELTIS Linn. 
Celtis crenato-serrata sp. nov. 
Arbor circiter 30 m alta, glabra, vel ramulis ultimis parce pubes- 
centibus; foliis subcoriaceis, ovatis vel elliptico-ovatis, acuminatis, basi 
rotundatis, leviter inaequilateralibus, 3-nerviis, margine in tertia inferiore 
parte integris, supra valde crenato-serratis ; fructibus ovatis, leviter com- 
pressis, circiter 1 cm longis. 
A glabrous tree about 30 m high. Branches slender, terete, reddish- 
brown, distinctly lenticellate with small lenticels, the ultimate branchlets 
slightly pubescent. Leaves ovate to elliptic-ovate, 7 to 10 cm long, 3 
to 5 cm wide, subcoriaceous, slightly shining, of the same color on both 
surfaces or slightly paler beneath, the base broad, somewhat inequilateral, 
rounded on one side of the midrib, subacute on the other side, the apex 
prominently acuminate, the acumen 1 to 1.5 cm long, apiculate, the 
margins in the lower one-third entire, above prominently crenate-serrate ; 
basal nerves three, prominent, the two lateral ones extending nearly to 
the apex and above somewhat looped at the anastomoses of the lateral 
veins, the lateral ones slender, horizontal, about 10 to 12 on each side 
of the midrib, the reticulations lax, indistinct; petioles 5 to 7 mm long. 
Flowers unknown. Fruits ovate, slightly compressed, about 1 cm long, 
the pericarp thin, fleshy. 
Luzon, Province of Bataan, Duale, lor. Bur. 20043 Topacio, October 2, 1909, 
in forests along streams, altitude about 100 m, locally known as malabatulan. 
A species well characterized by its prominently crenate-serrate leaves. 
ARISTOLOCHIACEZ. 
ARISTOLOCHIA Linn. 
Aristolochia macgregorii sp. nov. § Diplolobus. 
Foliis subtus ad costam, ramulis inflorescentiis petiolisque plus minus 
breviter hirsuto-pubescentibus; foliis chartaceis, oblongis, basi subsagit- 
tato-cordatis, apice breviter acute acuminatis, petiolo vix 5 mm longo; 
racemis axillaribus, solitariis, floribus circiter 4 cm longis. 
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