180 The Philippine Journal of Science wig 
A species manifestly closely allied to the widely distributed Cyathula 
prostrata Blume, but with entirely differently shaped leaves. In its in- 
florescence and floral structure it is very similar to Blume’s species. 
ANNONACEAE 
PAPUALTHIA Diels 
PAPUALTHIA SAM ARENSIS sp. nov. 
Frutex vel arbor parva subtus foliis ad costa ramulisque dense 
ferrugineo-pubescentibus ; foliis oblongis, subcoriaceis, usque ad 
15 cm longis, acuminatis, basi cordatis, aequilateralibus vel 
leviter inaequilateralibus, brevissime petiolatis, nervis utrinque 
10 ad 12, subtus cum reticulis primariis prominentibus ; floribus 
solitariis, longissime tenuiterque pedicellatis, circiter 1.5 cm 
longis, petalis crassissime coriaceis, oblongis, obtusis, extus plus 
minusve pubescentibus ; carpellis circiter 10, anguste oblongis; 
stigma capitata, leviter hirsuta. 
A shrub or small tree, the branchlets, petioles, and the midrib 
on the lower surface densely ferruginous-pubescent. Branches 
slender, terete, glabrous, dark-brown or nearly black when dry. 
Leaves subcoriaceous, generally oblong, sometimes a little wider 
in the upper part than below, rather pale when dry, somewhat 
shining, 10 to 15 cm long, 2.5 to 4.5 cm wide, apex prominently 
acuminate, the acumen blunt, base abruptly rounded, cordate, 
equilateral or slightly inequilateral, the upper surface smooth, 
glabrous, pale, the lower somewhat pale-brownish ; lateral 
nerves 10 to 12 on each side of the midrib, very prominent, 
coarsely anastomosing, the primary reticulations lax, prom- 
inent; petioles about 2 mm long. Flowers solitary, in the 
uppermost axils, their slender glabrous pedicels up to 11 cm in 
length. Flowers about 1.5 cm long, smaller wdien immature, 
pinkish-white. Calyx-lobes broadly ovate, coriaceous, acute, 
sparingly ciliate, 2.5 to 3 mm long, forming a nearly triangular 
calyx. Corolla up to 1.5 cm long, the lobes wholly united for 
the lower 3 to 4 mm, very thickly coriaceous, externally more or 
less appressed-pubescent in the lower part, the lobes oblong or 
narrowly oblong, obtuse, up to 12 mm long, 3.5 to 4.5 mm wide. 
Stamens indefinite, crowded, 1.8 to 2 mm long, the connectives 
truncate, concealing the anther-cells. Carpels about 10, nar- 
rowly oblong, slightly pubescent; style short, slender; stigma 
obovoid or capitate, somewhat hirsute. Fruit globose, glabrous, 
dark-brown when dry, shining, about 8 mm in diameter. 
Samar, Catubig Rivei' at Camaniwan, Bur. Sci. 2J/.180 Ramos, in damp 
forests at low altitudes, February 3, 1916. 
