272 The Philippine Journal of Science ms 



to 2 cm long, 3 to 5 mm wide, somewhat falcate, acuminate, 

 the base very inequilateral, one side with a rounded auricle, the 

 other acute, the margins with 2 or 3 very conspicuous teeth on 

 each side in the upper one-half, entire below, both surfaces min- 

 utely puncticulate, the lower paler than the upper and appressed- 

 hirsute with short hairs on the midrib beneath; lateral nerves 

 4 or 5 on each side of the midrib, distinct on the lower surface, 

 anastomosing, the reticulations rather lax; stipules lanceolate,' 

 falcate, acuminate, often irregularly cleft near the apex, mem- 

 branaceous, 4 to 8 mm long. Receptacles all axillary, solitary, 

 sessile, mostly pistillate, occasionally a staminate one on the same 

 plant with the pistillate ones. Outer bracts very broadly obo- 

 vate, about 4 mm wide and long, much thicker than the inner 

 ones, brown, truncate, slightly corniculate, glabrous; the next 

 inner ones thinner, obovate, prominently refuse; the innermost 

 ones linear-lanceolate, ciliate. Staminate perianth segments 4, 

 I mm long, two slightly corniculate; anthers 4. Pistillate seg- 

 ments 4, 0.5 mm long, oblong, obtuse. Achene 0.8 mm long. 



for C e Z A yf™\ S + a T D D ° ming ° RiVer ' ° n St ° neS al0n S Sma11 S*™*™ *» 

 forests at low altitudes, Bur. Scl 30555 Ramos, December 5, 1917 



Ihis is perhaps as near Elatostema gracilifolium Merr. as any other 

 tlTed £* " 'f? 1 ? dlfferent fr ° m * ln haMt ' its ^rter/fewe" 

 floretences "° CySt0HthS; and in the details of its in ' 



FAGACEAE 



QUERCUS Linnaeus 

 QUERCUS RIZALENSIS sp. nov. § Cyclobalanus. 



Arbor parva, cupulis exceptis glabra, ramulis atro-brunneis 

 vel mgrescentibus; foliis coriaceis, integris, ellipticis ad elliptico- 

 ovatis, usque ad 6 cm longis, utrinque acuminatis, subtus pallidis 

 vel glaucescentibus, nervis utrinque circiter 6, tenuibus, distinc- 

 tis, fructibus paucis, in spicis brevibus dispositis; cupulis 

 circiter 13 cm diametro, cinereo-puberulis, lamellis 5 ad 7 denti- 

 culatis; glans conico-ovoideis, glabris vel junioribus leviter pubes- 

 centibus, circiter 1.4 cm longis et latis. 



Jtwf l ree ' u glab !° US GXCept the CU P S (^florescences not 

 seen) , the branches terete, dark-colored, the branchlets dark 

 blackish-brown, glabrous. Leaves numerous, elliptic to ellipse 

 ovate, coriaceous, 4.5 to 6 cm long, 2 to 3 cm wide subequa Iv 

 narrowed to the acuminate base and to the acuminaV apex the 

 apical acumen narrow, hardly caudate, and less than 1 cm long 

 the upper surface smooth, pale to brownish-olivaceous thTlower' 

 pale or somewhat glaucous; lateral nerves about 6 on each sTde 

 of the rmdnb, slender, distinct, very obscurely anast mostg 



