x, c, 4 Merrill: Studies on Philippine Anonaceae, I 263 
margins, sessile, obiong-ovate, obtuse, very thick, slightly pubes- 
cent externally, concave, 10 to 12 mm long, 6 mm wide. Stamens 
indefinite, linear-oblong, fiat, 4 to 4.5 mm long, about 1 mm 
wide, closely packed, the connectives ovate-sagittate, 1 mm long, 
rostrate-acuminate. Carpels many, pubescent, narrowly oblong, 
about 2 mm long, narrowed into the slender, flattened, 2 mm 
long styles, the stigmas narrowly funnel-shaped, truncate, split 
down one side, 1 mm wide when spread, ovule solitary, basal. 
Mindanao, District of Zamboanga, Sax River, mountains back of San 
Ramon, Merrill 8297, November 28, 1911, in hill forests, altitude about 900 
meters. 
Apparently a very distinct species, in its stigma-characters allied to 
Goniothalamus tenuifolius King, but otherwise very different and in habit 
and general appearance somewhat resembling G. prainianus King, to which, 
however, it does not seem to be closely allied. 
GONIOTHALAMUS G I G A NT I FOL I US sp. nov. 
Frutex circiter 5 m altus, glaber vel subglaber; foliis oblongis, 
chartaceis ad subcoriaceis, usque ad 60 cm longis et 20 cm latis, 
nitidis, pallidis, basi acutis, apice latissime breviter obtuse acumi- 
natis vel obtusis, nervis utrinque circiter 30, valde prominentibus, 
supra impressis, arcuate-anastomosantibus, reticulis distinctis, 
laxis, floribus caulinis vel e ramis vetustioribus, ut videtur soli- 
tariis, breviter pedicellatis ; fructibus oblongis, cylindraceis, acu- 
minato-rostratis, 2.5 to 4.5 cm longis, circiter 1 cm diametro, 
in siccitate rugosis, glabris; seminibus 2. 
A shrub about 5 m high, apparently quite glabrous except parts 
of the flower and fruit. Branches terete, smooth, dark reddish- 
brown. Leaves very large, up to 60 cm long and 20 cm wide, 
oblong, firmly chartaceous to subcoriaceous, rather pale, of the 
same color, and shining on both surfaces when dry, the base 
acute, the apex very shortly, broadly, and obtusely acuminate or 
merely obtuse ; lateral nerves about 30 on each side of the midrib, 
somewhat ascending, nearly straight, impressed on the upper 
surface, very prominent on the lower surface, prominently arched- 
anastomosing 1 cm from the margin or less to form a very 
prominent, arched, marginal nerve; petioles stout, about 2 cm 
long. Flowers unknown, from the trunk or the larger branches, 
solitary, the pedicels, in fruit, 1 to 1.5 cm long, subtended by 
several small basal bracteoles, slightly pubescent. Fruits 5 to 20 
on each peduncle, oblong to cylindric, 2.5 to 4.5 cm long, about 1 
cm in diameter, very dark brown when dry, the pericarp thin, 
wrinkled, base acute, apex prominently rostrate-acuminate, exter- 
nally very sparingly pubescent with scattered, short, shining, 
