DszcEMBER 27, 1910] Tue Oaxs or Mount Apo 943 
Represented by number 11894, Elmer, Todaya (Mt. Apo), 
Mindanao, September, 1909. 
Quercus submonticola Elm. n. sp. 
A rather slender and medium-sized tree; stem 13 m. 
high, 4.5 dm. thick; its main branches arising from the 
middle, ultimately numerously branched, forming an elong- 
ated crown; twigs ascending, densely covered with a yel- 
lowish brown tomentum; wood whitish, quite hard and heavy: 
without odor or taste, covered with a smooth gray bark. Leaves 
alternate, copious, subchartaceous, suberect, flat, glabrous and 
shining green above, paler beneath, elliptic, 4 to 7 cm. long, 
2.5 to 3.5 em. wide across the middle, the entire margins 
subinvolute in the dry state, apex obtusely rounded or short 
acute, base rounded or very short obtuse; petiole short pubescent, 
5 mm. long; midrib conspicuous beneath, short yellowish brown 
pubescent, with 5 to 7 lateral pairs which are puberulent. In- 
frutescent spikes 7 to 10 em. long, ascending, usually few clus- 
tered from the ends of the two year old twigs, short yellow- 
ish pulverulent or becoming glabrate; fruits mostly above 
the middle, divaricate, 3 cm. long, 15 mm. thick at least; 
glans oblong, truncate at base, gradually curving to the nipple- 
Shaped apical point, green and covered with a yellowish brown 
pulverulence, 2.5 cm. long by 1.5 em. thick below the mid- 
dle; cup 1.5 cm. deep including the conspicuous stipe, cover- 
ed with a similar pulverulence, rings evident, more or less 
beset with apiculations. 
Type specimen 11428, A. D. E. Elmer, Todaya (Mt. Apo), 
District of Davao, Mindanao, September, 1909. 
Discovered in humus covered fertile soil of humid forests at 
4500 feet, on the trail towards Talon. The Bagobos call 
it ‘‘Ulayan.’’ 
It has the leaves of Q. monticola King and the fruits of Q. 
ilez Linn. Both mine and King’s species were growing side 
by side and their fruits were mature. Only one tree was 
observed, while Q..monticola King was quite abundant along 
the same ridge 1000 feet lower down on the Talon side 
of the mountain range. 
