420 
The Philippine Journal of Science 
1919 
Szyszylowicz does not make the transfei"* of Phoenicospermum 
javanicum Miq. to Sloanea in his paper “Zur Systematik der 
Tiliaceen” ® as indicated by Reorders and Valeton, but merely 
reduces the genus Phoenicospermum to Sloanea. 
STERCULIACEAE 
PTEROSPERMUM Schreber 
PTEROSPERMUM M EGALANTH U M sp. nov. 
Arbor parva, subtus foliis et ramulis et inflorescentiis densis- 
sime ferrugineo-stellato-tomentosis ; foliis oblongis, inaequila- 
teralibus, integris, acuminatis, supra glabris, nitidis, usque ad 
15 cm longis; inflorescentiis plerumque 2-floris, floribus longe 
pedicellatis, circiter 6.5 cm longis; sepalis anguste lanceolatis, 6 
cm longis et 1 cm latis ; petalis oblique obovatis, 3 cm latis, quam 
sepalis paullo longioribus. 
A tree, 7 to 8 m high, the branchlets, petioles, inflorescences, 
and the lower surface of the leaves densely stellate-tomentose 
with ferruginous hairs. Branches at first stellate-pubescent, 
soon becoming glabrous, nearly black when dry. Lreaves inequi- 
lateral, oblong, chartaceous to subcoriaceous, 9 to 15 cm long, 3 
to 6.5 cm wide, entire, or the margins obscurely undulate, rather 
sharply acuminate, the upper surface olivaceous, glabrous and 
shining when dry, the basal lobe of the broader side broadly 
rounded, of the narrower side rounded to acute, the leaf some- 
what obliquely cordate; lateral nerves about 6 on each side of 
the midrib, excluding those extending into the broader basal lobe ; 
petioles densely ferruginous-stellate-pubescent, 5 to 10 mm long. 
Inflorescences in the uppermost axils and subterminal, usually 
2-flowered, the peduncles 1.5 cm long or less, the pedicels in an- 
thesis 3 to 4 cm long, densely ferruginous-pubescent; bracts 
linear-lanceolate, entire, deciduous. Flowers white, fragrant, 
about 6.5 cm long, 5-merous. Sepals coriaceous, narrowly lan- 
ceolate, about 6 cm long, 1 cm wide, slightly acuminate, externally 
densely ferruginous-stellate-pubescent, inside densely subap- 
pressed fulvous-hirsute. Petals obliquely obovate, membrana- 
ceous, glabrous, about 6.5 cm long, 3 cm wide. Staminal column 
glabrous, 1.5 cm long. Staminodes 3 cm long. Filaments and 
anthers each 1.5 cm long, sometim.es 2, sometimes 3 between each 
pair of staminodes. Ovary ovoid, densely ferruginous-villous; 
style glabrous, 3 cm long. 
Panay, Capiz Province, Jamindan, Bur. Sci. 31269 Ramos & 
Edaho (type) , April 28, 1918 ; Ibahay, For. Bur. 25359 Achacoso, 
“Engl. Bot. Jahrb. 5 (1885) 427-457. 
