Quercus orbiculata Trel. 1924

Twigs moderate (3 mm.), fluted, scurfy becoming glossy red with inconspicuous
lenticels. Buds rather glossy red-brown, somewhat puberulent, acutely ovoid,
2 x 3 mm. Leaves partly evergreen, orbicular- to elliptical-obovate, acute to very
obtuse, cordate, entire, or aristate from the veins or somewhat undulately dentate
above, strongly revolute, moderate (3-4 x 5-6 or as much as 5 x 8 cm.), glabrescent
or slightly scurfy or papillate above, densely tawny-fleecy beneath; veins about 6-8 pairs,
forked and somewhat looping, impressed reticulate; petiole scurfy, 5-10 mm. long.
Catkins: male 20 mm. long, tawny-hairy, the short-ellipsoid glabrous anthers little
exserted. Fruit biennial, solitary or paired on thick stalks 5-30 mm. long; cup
turbinately cupshaped, moderate (12-15 mm. in diameter), with thin appressed
blunt brown and brown-ciliate scales; acorn round-ovoid, half-included.
Mexican table-land.