54 The Philippine Journal of Science me 
MAPANIA PLATYPHVLLA 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 
ANTI DESM A 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., .4. 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. 1 5 2 (1866 ) 252. 
Sarawak, Native collector 266, 50U, 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 
