Quercus texcocanaTrel.

Twigs rather slender (2-3 mm.), somewhat fluted, densely yellowish-tomentose,
becoming glabrous and gray the second season. Buds brown, glabrous, ovoid,
2 x 4 mm. Leaves deciduous, elliptical, obtuse to emarginate or mucronately
subacute, more or less cordate, entire, or repand above, revolute, rather small
(1.5-2.5 x 3-4.5 cm.), glossy above, dull and paler beneath, from stellate-velvety
glabrescent or remaining more or less scurfy on both faces or tomentose beneath;
veins about 7 pairs, evidently looped; petiole hairy, 1 x 3 mm. Catkins?. Fruit annual,
solitary and sessile, or 2-3 at end of a stout yellow-tomentose peduncle 10 mm. long,
or distributed on a stalk as much as 30 mm. long; cup open and shallow, rather large
(20 mm. in diameter), with thin rather close narrow acute buff scales pale-ciliate above
and dingy-tomentose below; acorn ovoid, 20 mm. long, covered toward the base only,
Mexican table land.