382 The Philippine Journal of Science 1922 
The alliance of this species is manifestly with Polychroa sinuata 
(Blume) (Procris sinuata Blume), from which it is distinguished 
especially by its ferruginous indumentum. 
The generic name Polychroa Loureiro which dates from 1790 
is here adopted in the place of Pellionia Gaudich. which dates 
from 1826. The two are congeneric, the type of Loureiro’s 
genus being Polychroa repens Lour., with which the much . 
more recently described Pellionia daveauana N. E.. Br. (1880) 
is identical. 
MENISPERMACEAE 
PYCNARRHENA Miers 
PYCNARRHENA MEMBRANIFOLIA sp. nov. 
Frutex scandens, inflorescentiis minute pubescentibus excep- 
tis glaber; foliis membranaceis, oblongis, 9 ad 12 cm longis, in 
siccitate atro-olivaceis, nitidis, tenuiter acuminatis, basi acutis, 
nervis utrinque 5 vel 6, tenuibus, petiolo 1 ad 2 cm longo; inflo- 
rescentiis ¢ cymosis, cymis fasciculatis, e caulis vetustioribus, 
tenuiter pedunculatis, paucifloris, circiter 3 cm longis, sepalis 
interioribus 3 vel 4 majoribus, incrassatis, obovatis, rotun- 
datis, concavis, 2.3 mm longis, petalis 3, orbicularis ad obovatis, 
1 mm diametro; staminibus circiter 6, obovoideis ad anguste 
obovoideis, 0.8 mm longis. 
A woody vine, glabrous except for the minutely pubescent 
inflorescences, the branches terete, about 8 mm in diameter, 
’ brownish, the leaf-bearing branchlets -about 2 mm in diameter, 
these sometimes solitary, sometimes fascicled. Leaves mem-~- 
branaceous, oblong, dark olivaceous when dry, shining, 9 to 12 
em long, 3 to 4.5 cm wide, slenderly acuminate, base acute; 
lateral nerves 5 or 6 on each side of the midrib, distant, slender 
but distinct, anastomosing; petioles 1 to 2 cm long. Staminate 
inflorescences fascicled on tubercles along the main stems oF 
leafless branches, the cymes about 3 cm long, slenderly pedun- 
cled, few-flowered, obscurely pubescent. Flowers yellow, black 
when dry, their pedicels 4 to 7 mm long, the external sepals 
small, slightly pubescent, ovate, acuminate, less than 1 mm in 
length, the next 3 or 4 larger, thickened, obovate, rounded, con- 
cave, glabrous, about 2.3 mm long, imbricate. Petals 3, orbic- 
ular to obovate, glabrous, about 1 mm in diameter. Stamens 
6, narrowly obovoid, 0.8 mm long. 
MINDANAO, Zamboanga District, Malangas, Bur. Sci. 37536 
Ramos & Edafio, October 26, 1919. In forests at low altitudes, 
locally known as dalupat. 
