Quercus ambivenulosa Trel. 1933

Ramuli graciles, 2 mm. crassi, glabri, paulum sulcati, plus minusve rubelli, demum grisei,
lenticellis parvis ; gemmae rotundo-ovoideae, obtusae, nitidae, pallide fuscae, glabrae,
3 mm. longae lataeque; folia elliptica vel oblonga, 10-14 cm. longa, 3-5 cm. lata, subnitentia,
subtus aeneo-colorata, apice basique acuta, glabra, utrinque cancellata, venis lateralibus
majoribus ca. 8, falcatis, marginem versus manifeste conjunctis; petioli 10-15 mm. longi;
fructus biennis, pedunculis brevibus ramulis crassioribus, fructus 1-3 gerentibus, cupula
hemisphaerica, tenui, 15 mm. diametro, squamis arcte appressis, obtuse attenuatis,
griseo-sericeis; glans ovoidea, semi-inclusa, 15 mm. longa.