448 The Philippine Journal of Science i»i9 



LOGANIACEAE 



GENIOSTOMA Forster 

 GENIOSTOMA PACHYPHYLLUM sp. nov. 



Frutex vel arbor parva, glabra, ramulis et foliis in siccitate 

 nigris; foliis coriaceis vel subcoriaceis, anguste oblongis ad 

 oblongo-lanceolatis, 5 ad 8 cm longis, basi acutis, apice acutis 

 vel obscure acuminatis, nervis utrinque 5 vel 6, tenuibus, reti- 

 culis subobsoletis ; fructibus axillaribus, solitariis, ovoideis vel 

 ellipsoideis, circiter 7 mm longis, breviter pedicellatis. 



A glabrous shrub or small tree, the branches terete, straw- 

 colored, the young branchlets black when dry as are the leaves 

 and petioles. Leaves coriaceous or subcoriaceous, brittle, nar- 

 rowly oblong to oblong-lanceolate, 5 to 8 cm long, 1.2 to 2.5 cm 

 wide, subequally narrowed to the acute base and to the acute 

 or slightly acuminate apex; lateral nerves slender, 5 or 6 on 

 each side of the midrib, obscurely anastomosing, the reticula- 

 tions obsolete or nearly so; petioles about 5 mm long; stipules 

 short, truncate. Fruits axillary, solitary, ovoid or ellipsoid, 

 about 7 mm long, black when dry, their pedicels about 5 mm 

 long; persistent sepals broadly ovate, rounded, their margins 

 slightly ciliate. 



Luzon, Ilocos Norte Province, Mount Palimlim, Bur. Sci. 

 S3316 Ramos, August 21, 1918, on forested slopes, altitude about 

 1,000 meters. 



This species is distinguished among the Philippine forms by 

 its glabrous, slenderly nerved, brittle, coriaceous or subcoriaceous 

 leaves, the reticulations being obsolete or nearly so, and by its 

 solitary, axillary fruits. The whole plant, except the branches, 

 is characteristically black when dry. 



APOCYNACEAE 



ALYXIA Banks 

 ALYXIA RETUSA sp. nov. 



Frutex scandens, inflorescentiis leviter pubescentibus exceptis 

 glaber, ramulis incrassatis, 5-angulatis; foliis verticillatis, 5- 

 natis, crassissime coriaceis, obovatis ad oblongo-obovatis, 5 ad 8 

 cm longis, apice late rotundatis retusisque, margine revolutis, 

 nervis tenuibus, indistinctis ; cymis axillaribus, breviter pedun- 

 culatis, circiter 3 cm longis; fructibus usque ad 3 cm longis, 

 partibus seminiferis solitariis vel binis, ellipsoideis, 10 ad 12 

 mm longis, 8 mm diametro. 



A scandent shrub, glabrous except the sparingly pubescent 

 Inflorescence, the branches stout, up to 8 mm in diameter, rugose 



