Quercus albocincta Trel.1924
Twigs slender (2 mm.), fluted, glabrous, from brown approaching
scarcely evident lenticels. Buds rather dull, somewhat orange or brown, glabrous,
ovoid, about 2 x 3 mm. Leaves deciduous, elliptical-lanceolate, acute, narrowly
attenuate to obtuse at base, coarsely serrately toothed with bristles 5-7 mm. long,
and sinuses deep but obtuse, large (5-9 x 10-15 cm.), glossy and glabrous or the
somewhat paler lower surface exceptionally tufted in the axils; veins about 8 pairs,
frequently branched but obscurely and very irregularly looped, white beneath like
the midrib and the cartilaginous margin; petiole glabrous, pale, 1.5 x 20-45 mm.
Flowers and fruit ?.
Western Sierra Madre region of Mexico.