Three populations of the epiphyllous liverwort Drepanolejeunea madagascariensis collected in the cloud forests of Reunion Island (Mascarene Archipelago) were investigated for their volatile compds., because of the pleasant, sweet, warm, woody-spicy, and herbaceous fragrance, slightly reminiscent of dill, of this species. By applying the headspace solid-phase microextn. (HS-SPME) technique coupled to GC/MS anal., 34 (sic) compds. were detected in total, with p-menth-1-en-9-ol (28.8-43.5%), limonene (10.5-14.7%), β-phellandrene (8.8-11.6%), and the so-called dill ether (8.5-16.6%) as the main components. The presence of 1-epi-α-pinguisene confirms the possible use of pinguisane-type sesquiterpenoids as a characteristic chem. marker for the order Jungermanniales. [on SciFinder(R)]