Quercus prinopsis Trel. 1924

Twigs slender (2 mm.), somewhat fluted, from dingy-hairy glabrate and
rather glossy brown with prominent pale lenticels. Buds glossy red-brown,
glabrescent, ovoid, 2 x 3 mm. Leaves deciduous, lance-elliptical, acute or
the tapered apex callous-obtuse, rounded at base or slightly cordate, subentire
or undulate to typically coarsely serrate with blunt callous-tipped teeth, rather
small (2-3 x 7-9 cm.), glabrous and very glossy above, finely but densely and
persistently gray or creamy stellate-tomentose beneath; veins about 10-12 pairs,
obscurely if at all looped; petiole yellow-tomentose, 1.5 x 5 mm. Catkins?.
Fruit annual, several at end of a tomentose peduncle 2 x 40 mm.; cup half-round,
small (10 mm. in diameter), with thin somewhat loose acute puberulent scales;
acorn subglobose, striately ridged, nearly included.
Mexican table-land.