940 LEAFLETS OF PHILIPPINE BoTANY [Vor. III, Arr. 52 
face, tips recurved, much paler or whitish green beneath, 
thinly coriaceous; infrutescence 6 inches long, erect or ascend- 
ing, terminal or rather from the uppermost leaf axils; 
acorns 0.75 inch across, the cup grayish green; wood hard, 
whitish or brownish toward the center, nearly odorless and 
without taste; bark thick, mottled, smooth or only thinly 
checked, reddish beneath the epidermis. ''Ulayan?' is the 
Bagobo name. 
Represented by numbers 11299 and 11787, Elmer, Todaya 
(Mt. Apo), Mindanao, August and September, 1909. 
Quercus pruinosa Blm. 
Field-note for 10480:—Tree 60 to 70 feet high, in damp 
fertile soil of humid woods at 4000 feet; stem 4 feet thick; 
wood dull white, with brown streaks throughout, hard, heavy, 
tough; bark brown, mottled, longitudinally lenticelled; crown 
widely spreading, the main branches rigid; wood tasteless but 
with a distinct sourish smell; leaves chartaceous, descending, 
curvingly conduplicate on the upper deep green side, tips re- 
curved, dull ashy gray beneath; inflorescence erect, terminal, 
yellowish. ''Ulayan" is the Bagobo name. 
Represented by numbers 10180 and 10866, Elmer, Todaya 
(Mt. Apo), Mindanao, May and June, 1909. 
Quercus reflexa King 
Field-note:—Medium-sized trees, 35 feet high, with a 
1.5 foot thiek stem, in rich moist soil of very steep wooded 
slopes along the Sibulan river at 4000 feet; main branches 
arising above the middle, ascending, ultimately branched; wood 
hard, duller white toward the center, heavy, odorless and 
tasteless; twigs ascending, angularly ridged, covered with a 
yellowish brown puberulence; leaves descending, chartaceous, 
conduplicate on the upper rather dull green surface, tips 
recurved, grayish green beneath, the prominent nerves covered 
with a similar pulverulence; infrutescence ascending from the 
uppermost leaf axils, 3 inches long; acorns clustered along 
the upper portion of the unbranched spikes, 1 inch across, 
flattish, green except the yellowish reflexed appendages; nut 
broadly ovoid. 
