244 The Philippine Journal of Science 1920 
PIPERACEAE 
PIPER Linnaeus 
PIPER ANGUSTiPELTATUM sp. nov. § Eupiper. 
Frutex dioicus, scandens, glaber; foliis oblongis, nitidis, 10 
ad 16 cm longis, aequilateralibus, chartaceis, basi rotundatis et 
anguste peltatis, 7-nerviis, apice perspicue acuminatis; spicis 2 
cylindricis, circiter 3 cm longis et 12 mm diametro, bracteis pel- 
tatis, glabris, stylis tenuibus, patulis, confertis, 3 ad 4 mm longis. 
A glabrous, dioecious vine, the ultimate branches terete, about 
2 mm in diameter. Leaves chartaceous, oblong, 10 to 16 cm long, 
3 to 6 cm wide, equilateral or nearly so, the base rounded and 
narrowly peltate, the petioles inserted, 2 to 4 mm from the edge 
of the leaf, 7-nerved, the inner pair of nerves extending to the 
apex, the reticulations horizontal, distinct, subparallel, the apex 
rather prominently acuminate, both surfaces shining when dry; 
petioles 2 to 2.5 cm long. Pistillate spikes, leaf-opposed, cylin- 
dric, about 3 cm long and 12 mm in diameter, their peduncles up 
to 2 cm in length; bracts peltate, rounded, 0.8 mm in diameter, 
styles numerous, densely crowded, spreading, slender, 3 to 4 mm 
long. Stigmas 2, recurved, 0.5 mm long. 
Luzon, Tayabas Province, Mount Binuang, Bur. Sci. 288U8 Ra- 
mos & Edaho, May 19, 1917, in damp forests along rivers at 
low and medium altitudes. 
This species is similar and very closely allied to Piper long- 
istigmum C. DC. from which it is easily distinguished by its 
narrowly peltate leaves. 
PIPER CATUBIGENSE sp. nov. § Eupiper. 
Frutex dioicus, scandens, foliis subtus ad costa nervisque 
pubescens ; foliis penninerviis, membranaceis, lanceolatis ad 
oblongo-ovatis, 15 ad 17 cm longis, basi obtusis ad rotundatis, 
leviter inaequilateralibus, apice tenuiter acuminatis, nervis 
utrinque circiter 9, distinctis; spicis $ cylindricis, tenuibus, 
5 ad 7 cm longis, circiter 3 mm diametro, bracteis peltatis. 
A scandent, dioecious vine, the branchlets, petioles and leaves 
along the midrib and nerves on the lower surface distinctly pubes- 
cent. Leaves membranaceous, lanceolate to oblong-ovate, pen- 
ninerved, 15 to 17 cm long, 4 to 9 cm wide, the base obtuse 
or rounded and slightly inequilateral, the apex slenderly acum- 
inate ; lateral nerves about 9 on each side of the midrib, distinct, 
ascending, somewhat curved ; petioles 10 to 12 mm long. Stam- 
inate spikes cylindric, rather slender, black when dry, 5 to 7 
cm long, about 3 mm in diameter, their peduncles 10 to 12 mm 
