Quercus × avellaniformis Colm. & Bout.

lamina ovate to obovate; base broad; abaxially densely tomentose; lateral veins straight (all these features like in Q. rotundifolia )

cupscales appressed and tuberculate in the basal part (as in Q. rotundifolia ), free and partially outcurved in the apical part (as in Q. suber )

– Q. rotundifolia was at first considered as a subspecies of Q. ilex [= Q. ilex subsp. rotundifolia (Lam.) T. de Morais], so it is logical to change in that way the name of Q. x morisii Borzi 1880 (= Q. suber X Q. ilex subsp. ilex ), as it is not an accepted name (later than x avellaniformis 1854), which becomes Q. x avellaniformis nothosubsp. morisii (Borzi) F.M Vázquez & al 2018 ; see Q. x morisii.