420 "^he Philippine Journal of Science i»i» 



Szyszylowicz does not make the transfer of Phoenicospermum 

 javanicum Miq. to Sloanea in his paper "Zur Systematik der 

 Tiliaceen" ^ as indicated by Koorders and Valeton, but merely 

 reduces the genus Phoenicospermum to Sloanea. 



STERCULIACEAE 



PTEROSPERMUM Schreber 

 PTEROSPERMUM MEGALANTHUM sp. nov. 



Arbor parva, subtus foliis et ramulis et inflorescentiis densis- 

 sime f errugineo-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. Leaves 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 8 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, sometimes 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 & 

 Edano (type), April 28, 1918; Ibahay, For. Bur. 25359 Achacoso, 



•Engl. Bot. Jahrb. 5 (1885) 427-457. 



