Moisés Santiago Bertoni

Mosè Giacomo Bertoni (1857–1929), known in Spanish as Moisés Santiago Bertoni, was an Italian-speaking Swiss-Paraguayan naturalist, botanist and anarchist writer. While conducting research in eastern Paraguay in 1899, he was the first to describe Stevia.

His botanical collections are conserved at the Sociedad Científica del Paraguay, and were afterwards restored by the Conservatoire et Jardin botaniques de la Ville de Genève (Switzerland). Provided by Wikipedia