DNA barcoding confirmed it: the lost Nobleman’s Retort.
However, the fruit known commercially as "The Nobleman Retort -Clymenia-" is not the wild variety. It is a specific, cultivated polyploid (a plant with more than two sets of chromosomes) selected for one purpose: Part 2: The Legend of the "Retort" Why "Retort"? The word has two meanings, both of which apply to this fruit. The Nobleman Retort -Clymenia-
Since 2020, a private consortium (led by a former Dior perfumer and a Michelin-starred chef) has managed to cultivate a micro-orchard of 200 trees inside a climate-controlled bunker in Bordeaux, France. DNA barcoding confirmed it: the lost Nobleman’s Retort
In chemistry, a retort is a vessel used for distillation. The Clymenia fruit has an incredibly thick, spongy albedo (the white pith). This pith acts like a natural distillation column. As the fruit ripens, it does not get sweeter in the standard sense. Instead, it performs a chemical retort : it breaks down bitter alkaloids and converts harsh citrus acids into incredibly complex, volatile aromatic esters. The word has two meanings, both of which apply to this fruit
Unlike the common orange ( Citrus sinensis ) or lemon ( Citrus limon ), which are hybrids of older species, Clymenia is believed to be a —or close to it. Native specifically to the islands of Palau, the Bismarck Archipelago, and parts of New Guinea, the Clymenia fruit is small, resembling a tangerine, but with a distinct neck or "nipple" at the apex.