Melon
The scent of melon in a fragrance usually derives from the popular aromachemical calone, which came to fame in the 90s with aquatic fragrances like CK One, Cool Water, L’Eau d’Issey and Acqua di Gio.
Calone’s watery, cucumber/melon facets are prolific in the Aquatic genre, but it can also be used in woody fragrance or florals for a dewy lightness.
See also Marine Notes, Cucumber.