306 MERRILL. 



becoming nearly glabrous, the apex sharply and rather abruptly 

 acuminate, the acumen about 1 cm long, the base acute or some- 

 what rounded ; nerves about 17 on each side of the midrib, prom- 

 inent; petioles 2 to 3 cm long, when young somewhat pilose, 

 becoming glabrous, at first with the membranaceous stipules 

 adherent to and bordering the petioles, these soon deciduous. 

 Inflorescence more or less pilose, in the upper axils and terminal, 

 solitary, 2- to 5-flowered. Flowers white, about 6 cm in diameter. 

 Petals ovate, obtuse, about 1.5 cm long. Petals elliptic, obtuse, 



3 cm long. Stamens very numerous. Styles 8 or 10, spreading. 

 Fruit unknown. 



Mindanao, Province of Surigao, Surigao, Bolster 311, April, 1906 (type), 

 in forests, altitude about 65 m, Piper 22U, April, 1911; Hinatuan, Fi-per 515, 

 April 1911. 



This species was indicated in the herbarium as new in 1906, but was not 

 described on account of paucity of material. The additional specimens col- 

 lected by Mr. Piper show that the characters of the species are constant 

 and that it is apparently distinct. Its venation and shape of the leaves 

 distinguish it from other Philippine forms. Specimens from Leyte dis- 

 tributed by Mr. Elmer {No. 71U9) under this name certainly do not represent 

 the species, but are probably referable to Dillenia philippinensia Rolfe. 



SAURAUIA Willd. 



SAURAUIA MACGREGORII sp. nov. 



Arbor circiter 10 m alta, novellis setae 1.5 ad 3.5 mm longae 

 dense obtectis; foliis oblongis, coriaceis, usque ad 35 cm longis, 

 subtus parce setosis; inflorescentiis caulifloris, fasciculatis, vix 



4 cm longis, setosis, paniculatis; floribus circiter 1.5 cm diametro, 

 ovario 5-loculare. 



A tree about 10 m high, the young parts very densely covered 

 with brownish, slender, spreading, 1.5 to 3.5 mm long setae, 

 these setae less numerous on the petioles and midribs of the 

 leaves and on the older parts. Leaves oblong, coriaceous, shin- 

 ing, the lower surface considerably paler than the upper, 15 

 to 35 cm long, 5 to 10 cm wide, the apex shortly acuminate, the 

 base obtuse or rounded, the margins distantly glandular-denti- 

 culate, each small tooth bearing a long ciliate seta ; lateral nerves 

 11 to 13, prominent on the lower surface, anastomosing, the 

 reticulations prominent, the midrib, nerves, and reticulations with 

 scattered setae; petioles 2.5 to 3.5 cm long, setiferous. Inflores- 

 cence fascicled on the trunk, paniculate, less than 4 cm long, 

 rather densely brownish pubescent and with scattered short 

 setae, the bracts narrowly oblong, 4 to 5 mm long, thick. Flowers 

 white, 5-merous, about 1.5 cm in diameter. Outer two sepals 

 elliptic-ovate, rounded, concave, slightly setose externally, 5 to 



