Abstract
The bryophytes collected by Giuseppe Raddi during his travels in Brazil (1817–1818) housed at Pisa (PI) and Firenze (FI) herbaria were critically studied. The present study provides information about types, nomenclature, taxonomy and geographical distribution for 51 species. One comb. nov. (Taxilejeunea serpyllifolioides (Raddi) Costa (basionym: Jungermannia serpillifolioides Raddi 1822) and two new synonyms (Jungermannia serpillifolioides Raddi 1822 = Taxilejeunea isocalycina (Nees) Steph. 1914; Anthoceros brasiliensis Raddi 1818 = Dendroceros crispus (Sw.) Nees 1846) are made.