カンアオイ類の精油について, 補遺その2

抄録

The essential oils of seven species of Japanese wild-ginger belonging to Heterotropa genus of Aristolochiaceae were investigated. H. stellata contains borneol, elemicin and safrole as main components. H. aspera contains borneol as the sole major constituent together with various kinds of minor components. Though the botanical character of H. geaster is much similar to that of H. aspera, the former contains trans-asarone and elemicin and these two species are different each other. H. nankaiensis and H. yoshikawae are much similar to H. nipponica on the patterns of their chemical constituents and also on the outernal appearances of their plants. H. trigyna affords an oil containing only safrole as well as two other species of the same group. H. dilatata contains methyleugenol as a main component.