Many vine identification books were published at this time, one of which is Victor Rendu's Ampélographie française of 1857, featuring hand-colored lithographs by Eugene Grobon.
Then Pierre Galet of the École nationale supérieure agronomique de Montpellier made a systematic assembly of criteria for the identification of vines.
The book collects 551 color plates of grapes from all over the world, with texts in Italian and English, which describe the morphological and agricultural characteristics of each vine variety, as well as their synonyms and historical curiosities.
Famous successes with the technique include proving the identity of Zinfandel, Primitivo, and Crljenak Kaštelanski, and identifying the parents of Sangiovese as Ciliegiolo and Calabrese Montenuovo.
[2] The original Galet Ampélographie Pratique is the definitive book, either in French or in English translation, but has long been out of print and does not include any DNA evidence.