54 The Philippine Journal of Science i»is 



MAPANIA PLATYPHYLLA sp. nov. § Pandanophyllum. 



Foliis petiolatis, petiolo 15 ad 20 cm longo, laminis usque ad 

 40 cm longis et 8 cm latis, apice longe abrupte caudatis ; scapis 

 10 ad 12 cm longis, monocephalis, capitulis anguste oblongis, 

 1.5 ad 2 cm longis. 



Rhizome stout, the upper part covered with the much-broad- 

 ened, somewhat inflated basal portions of the petioles. Leaf- 

 blades oblong, chartaceous, up to 40 cm long and 8 cm wide, 

 3-nerved, gradually narrowed below into the rather stout petiole, 

 which is 10 to 14 mm wide when spread, the basal portion 

 rather abruptly enlarged, somewhat inflated, sheathing, when 

 spread 4 to 5 cm in width, the apex rather abruptly narrowed 

 into the slender, scabrid, 10 cm long, caudate appendage. Scapes 

 10 to 12 cm long, solitary or several in an axil, subtended by 

 several overlapping bracts. Heads solitary, of a single oblong 

 spike 1.5 to 2 cm in length. Bracts coriaceous, glabrous, about 

 8 mm long, the bracteoles similar but smaller. Outer two glumes 

 somewhat ciliate on the keels. 



Sarawak, Native collector 993 (Bur. Sci.) , 1912. 



Manifestly allied to the Bornean Mapania petiolata C. B. Clarke, but 

 with leaf-blades twice as wide and half as long as in that species and 

 shorter scapes. 



EUPHORBIACEAE 



ANTIDESMA Burmann 



Few species of this rather large genus have been credited to Borneo, 

 yet it is evident from the material at hand that the genus is largely 

 developed in the island. Species previously credited to Borneo are Anti- 

 desma auritum Tul., A. ghesaembilla Gaertn., A. gibbsiae Hutchins., 

 A montanum BL, A. moritzii Muell.-Arg., A. neurocarpum Miq., A. stipulare 

 Bl., A. tomentosum Bl., and A. venenosum J. J. Sm., of which two are 

 endemic. In our Bornean material three additional forms are represented 

 by material insufficient for description, neither of which can I refer to 

 any described species. Antidesma cuspidatum Muell.-Arg. is here credited 

 to Borneo for the first time, while nine species are proposed as new, 

 making the total number of species known from Borneo at least twenty-two. 



ANTIDESMA CUSPIDATUM Muell.-Arg. in Linnaea 34 (1865) 67; DC. 

 Prodr. 15 2 (1866) 252. 



Sarawak, Native collector 266, 504, 507, 508 (Bur. Sci.) ; Hewitt s. n. 

 Localities given on the labels are Santubong, Tabuan, Matang, and Rock 

 Road. 



The specimens are all with staminate flowers, but agree closely with 

 the description of the above species and with a full series of specimens 

 from Singapore, eight sheets, mostly collected by Ridley, and mostly 

 erroneously named Antidesma moritzii Muell.-Arg. The Sarawak specimens 

 have somewhat larger leaves than the Singapore ones, up to 20 cm 

 long and 9 cm wide, but in all essentials seem to be identical with the 



