Quercus imbricariaefolia Trel. 1924

Twigs moderate (3 mm.), little fluted, glabrescent with little-evident lenticels. Buds
glabrescent, acutely ovoid, 2 x 2-3 mm. Leaves deciduous, elliptical, rounded at both
ends more or less mucronate, entire, somewhat revolute, moderate (2-3 x 8-10 cm.),
glabrous or with puberulent midrib and raised-venulose above, from fleecy glabrescent
except in sheltered places and with granular-bullate surface beneath; veins about 15-20
pairs, often with evanescent intermediates, branched and evidently though irregularly
looped; petiole rather cdabrescent, about 5 mm. long. Catkins?. Fruit biennial, solitary
on a stalk some 4 x 5 mm ; cup rather turbinate, moderate (15 mm. in diameter), with
thin rather squarrose blunt hoary scales; acorn round-ovoid, 15 mm. long, fully half-included.
Mexican table-land and adjacent cordillera.