List of botanists in Italy, ordered by Italian cities:
Venice:
Sertenius?
Capellius?

Padua:
Pontedera, died 1757

Bologna:
Joseph Montius
Cajetanus Montius, with a reference to "Jacobi Zanonii Rariorum stirpium historia, ex parte olim edita, nunc centum plus tabulis ex commentariis auctoris ab ejusdem nepotibus [G.A., B., & G.Z.]. ampliata; opus universum digessit, Latine reddidit, supplevitque Cajetanus Montius", 1742.

Florence
Targioni-Tozzetti, Giovanni (1712-1783). Italian. Physician and botanist, associate of Pietro Antonio Micheli, director of Florence medico-botanical garden 1737-1749. Also known as Targionius.

Pisa
Michaele Angelo Tilli (1655 Castelfiorentino - 1740 Pisa)

Turin
Bartolomeo Giuseppe Caccia

Ferrara
Bellaja

Verona
Cavazzinius
Seguier - was in Verona from 1736 to 1755.

Rome
no botanists, and the garden is neglected ('nullus et hortus neglectus')