RADDI, Giuseppe (rad-dee), Italian botanist, born in Florence, Italy, 9 July, 1770; died on the island of Rhodes, 6 September, 1829. He was apprenticed to a druggist, but obtained employment in the Museum of natural history of Florence. The grand duke, Ferdinand III., afterward became his protector, and in 1817 sent him to Brazil to study the crypto-gains of the country. Raddi explored the basins of Orinoco and Amazon rivers, and formed a collection of plants and animals. In 1828 he was appointed a member of the commission that was charged with studying the Egyptian hieroglyphs under the direction of Champollion, but he was taken sick and died in Rhodes on his return to Florence. His works include "Crittogame Brasiliane " (2 vols., Florence, 1822) : and" Plantarum Brasiliensium nova genera et species novae vel minus cognitin," in which he described 156 new species of ferns, etc. (1825). Leandro de Sacramento (q. v.) gave the name of Raddia Raddica to a cryptogamous plant, and Candolle has retained the name in his classification of the American flora.