Citron
A source of confusion is that "citron" or similar words in French (and other languages), and English are false friends, as they refer to the lemon. Indeed, into the 16th century, the English name "citron" included the lemon and perhaps the lime as well.
Giovanni Baptista Ferrari
Ferrari was the first scientist to provide a complete description of the limes, lemons and pomegranates. He also described medical preparations, the details on citron and prescribed limes, lemons and pomegranates as medicinal plants against scurvy.