Tree of Mystery
P.s. Thanks to my reader, Veronica, I now know the identity of the mystery tree: Robinia pseuodoacacia, aka Black Locust or Witte Acacia. Veronica, please email me so I can thank you properly with a mini of my mimosa perfume, Les Nuages de Joie Jaune.
According to W.A. Poucher's Perfumes, Cosmetics and Soaps (Vol. 1, p. 296): "Source: Natural. Flowers of Robinio pseudo-acacia, L. Leguminosae. The absolute is obtained by extraction with volatile solvents. Possesses an intense odour of the blossoms. Chemical: Contains indole, methyl antrhanilate, linalool, benzyl alcohol, heliotropin, and trepineol, with traces of aldehydes and ketones of peach odour".