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Summary: Phytologia (December 2010) 92(3)366
GEOGRAPHIC VARIATION IN THE LEAF ESSENTIAL OILS
OF HESPEROCYPARIS ARIZONICA AND H. GLABRA
Robert P. Adams
Biology Department, Baylor University, Box 97388, Waco, TX
76798, USA,
email Robert_Adams@baylor.edu
Jim A. Bartel
U.S. Fish and Wildlife Service, Carlsbad Fish and Wildlife Office
6010 Hidden Valley Road, Suite 101, Carlsbad, CA 92011-4213
David Thornburg
2200 W. Winchester Lane, Cottonwood AZ 86326
and
Andrew Allgood
P.O. Box 437, Cornville, AZ 86325
ABSTRACT
The leaf essential oils were analyzed from four
Hesperocyparis (=Cupressus) arizonica and five H. glabra
populations. The leaf oil of H. arizonica has large amounts of
umbellulone (18.8%), terpinen-4-ol (11.0%), nezukol (11.6%),
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