THE FLORA OF MOUNT PULOG. 
339 
SMI LAX L. 
1. S. china Linn. Sp. PL (1753) 1029. 
Common in the mossy forest, variable, C. M. Z. 16131, 16198, Merrill 6494, 
6552. 
Common at higher altitudes in the Benguet-Lepanto region, and also on 
Mount Haleon, Mindoro; Japan to southern China and Formosa. 
2. Smilax pygmaea Merrill sp. nov. § Nemexia. 
Suffrutex erectus, str ictus, inermis, 20 ad 40 m altus, ecirrhif erus ; f oliis 
alternis, oblongo-ovatis, 3-5-nerviis, petiolo inflato; umbellis axillaribus, 
solitariis, paucifloris ; floribus circiter 3 mm longis. 
Erect, unbranched, glabrous, woody or suffrutescent, from a thickened 
root, the stems terete, unarmed, yellowish or olivaceous. Leaves alternate, 
oblong-ovate, firmly chartaceous or subcoriaceous, 1.5 to 3 cm long, 7 
to 15 mm- wide, drfil or slightly shining, beneath subglaucous or pale, 
often sornewhat reflexed, base rounded or subcordate, apex acute or 
sharply apiculate-acuminate ; nerves 3 or 5, distinct, reticulations prom- 
inent; petioles 7 to 10 mm long, apparently jointed with the lamina, 
and persistent on the stem after the fall of the leaf-blade, deeply chan- 
neled and inflated in the lower two-thirds, half clasping the stems. 
Umbels in the upper axils, solitary, 4- to 6-flowered, the peduncles curved, 
slender, 1 to 1.5 cm long; pedicels 5 to 7 mm long. Pistillate flowers 
3 mm long, the sepals 3, elliptic-oblong, 3 mm long, erect; petals 3, 
similar to the sepals; rudimentary stamens 2 or 3, 2 mm long. Ovary 
elliptic, glabrous, 3-celled, each cell with two ovules; styles stout, nearly 
1 mm long. Fruit globose (immature) about 5 mm in diameter, with a 
single seed. 
In the open grass lands of the summit above 2,700 m altitude, Merrill 6598, 
May 1909, with flowers and immature fruits, McGrego n 8902, July, 1909, with 
immature fruits. 
A species apparently most closely allied to Smilax hiflora Miq. of Japan, 
but quite different from that species. Well characterized by its erect, strict habit, 
small size, absence of spines and tendrils, and other characters. 
DIOSCOREACEiE. 
DIOSCOREA Linn. 
1. D. luzonensis Schauer in Nov. Act. Acad. Nat. Cur. 19 (1843) Suppl. 
1 :444. 
In stream depressions, lower pine region, Merrill 6512. 
Rather widely distributed in Luzon ; endemic. 
