Re-examination of the volatile leaf oils of Juniperus flaccida, J. martinezii, and J. poblana

摘要

The composition of the volatile leaf oils (chiefly terpenoids) of Juniperus flaccida, J. martinezii, J.poblana, J. poblana var. decurrens and affiliated J. poblana from Nayarit are reported. All of the taxa'soils are dominated by α-pinene (16.6 - 65.0%). However, divergence is evident in the oils of J. martineziiand the juniper from Nayarit as well as J. poblana, Oaxaca. The number of unique compounds in the oilof the aff. J. poblana from Nayarit support its recognition as a distinct taxon. However, DNA sequences,morphology and ecological data are needed to determine the taxonomic status of the Nayarit junipers.Published on-line www.phytologia.org Phytologia 99(3): 191-199 (Aug. 8, 2017). ISSN 030319430.