Palermoで最も古い樹木はどれですか。

Palermo's fig population is unusually well documented because most of it traces back to a handful of 19th century plantings, several still identifiable today. The Orto Botanico's own specimen, planted in 1845, is the oldest and best studied: 180 years of growth have built a canopy now measured at roughly 3,000 square metres, reportedly the largest of any tree in Europe, held up by 44 secondary trunks that grow down from the branches as aerial roots. Its more famous descendant in Piazza Marina, grown from a cutting taken off this tree in the 1860s, is currently fighting a fungal infection that has cost it half its own canopy. A third fig outside the home of murdered judge Giovanni Falcone is younger still, planted only decades ago, but carries its own civic weight as a memorial renewed every year on the anniversary of his 1992 killing. The botanical garden charges standard entry; Piazza Marina, a short walk away, is free.