382 'rhe 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 repent Lour., with which the much 

 more recently described Pellionia daveauxina N. E. Br. (1880) 

 is identical. 



MENISPERMACEAE 



PYCNARRHENA Miers 

 PYCNARRHENA MEM BRAN I FOLIA 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 

 cm 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 or 

 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 & Edano, October 26, 1919. In forests at low altitudes, 

 locally known as dalupat. 



