To have direct access to the data, go to the List of species, which submits in alphabetical order all the species names and their synonyms.
Besides, you can consult some Botanical data about the genus Quercus, and the Classifications that have been suggested.
All the pictures labeled "Jan De Langhe" must be read like that
: "Jan De Langhe, dendrologist at Ghent University Botanical Garden,
in collaboration with Arboretum Wespelaar "