Abstract
A nomenclatural conflict between Quercus acutifolia and Q. conspersa is solved based on the thorough revision of herbarium specimens, type specimens, original descriptions and field observations. Q. conspersa is proposed as a synonym of Q. acutifolia, as are the names Q. acutifolia ζ conspersa, Q. acutifolia β bonplandi, Q. acutifolia γ angustifolia, Q. acutifolia ε longifolia and Q. candolleana. In addition, Q. grahamii is recognized as the correct name for the taxon identified as Q. acutifolia. Q. conspersa is lectotypified and Q. conspersa f. caudata is neotypified here. Information on the distribution of Q. acutifolia and Q. grahamii and the main features used to distinguish them is also provided.