His name has been immortalized by Horace, who dedicated to him two of his Epistles (i. 3~ i~. 2), from which it would appear that he composed lyrics of a light, agreeable kind. The statement of Pomponius Porphyrion, the old commentator on Horace, that Florus himself wrote satires, is probably erroneous, but he may have edited selections from the earlier satirists (Ennius, Lucilius, Varro).
Nothing is definitely known of his personality, except that he was one of the young men who accompanied Tiberius on his mission to settle the affairs of Armenia. He has been variously identified with Julius Florus, a distinguished orator and uncle of Julius Secundus, an intimate friend of Quintilian (Instit. x. 3, 13); with the leader of an insurrection of the Treviri (Tacitus, Ann. iii. 40); with the Postumus of Horace (Odes, ii. 14) and even with the historian Florus.