Analysis by gas chromatography–mass spectrometry of the volatiles from the fruits of Ammodaucus leucotrichus subsp. leucotrichus and subsp. nanocarpus grown in North Africa and the Canary Islands, respectively

The volatiles from the fruits of Ammodaucus leucotrichus subsp. leucotrichus and subsp. nanocarpus (two endemic species, the first from North Africa and the second from the Canary Islands, Spain) were studied by gas chromatography and gas chromatography–mass spectrometry. The major components of the volatiles of subsp. nanocarpus were found to be, β-pinene (22.2–33.6%), bornyl angelate (20.6–21.8%) and camphor (8.3–11.7%) whereas in the fruits of subsp. leucotrichus, the main constituents were perillaldehyde (63.6%) and limonene (26.8%). We also suggest that subsp. nanocarpus should have the status of species and should be named Ammodaucus nanocarpus.