AG´OLUM a shepherd's staff (pastoralebaculumquopecudesaguntur, Festus, s. v.),
identified by Rich with the staff of the modern drovers of the Campagna,
“formed by a long straight shoot of prickly pear.”
A Dictionary of Greek and Roman Antiquities. William Smith, LLD. William Wayte. G. E. Marindin. Albemarle Street, London. John Murray. 1890.