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Alfred Fredol was the pseudonym of Alfred Moquin-Tandon.
Moquin-Tandon was professor of zoology at Marseille from 1829 until 1833, when he was appointed professor of botany and director of the botanical gardens at Toulouse. In 1850, he was sent by the French government to Corsica to study the island's flora. In 1853, he moved to Paris, later becoming director of the Jardin des Plantes and the Académie des Sciences.
His books included L'Histoire Naturelle des Iles Canaries (1835–44), co-authored with Philip Barker Webb and Sabin Berthelot.
One of his specialities was the family Amaranthaceae (The Amaranth family).