Hi,
I was thinking that:
Quercus margaretiae (Quercus margaretiae (Ashe) Small),
Quercus margarettae (Quercus margarettae (Ashe) Small) and
Quercus margaretta (Quercus margaretta (Ashe) Small)
were synonyms but now I’m not so sure.
They are not identified as synonyms like so many others in the database.
They have the same author, same publication and same date; two have the same basionym.
Perhaps parahomonym is not quite right if they are understood to be different.