(-)-alpha-Microbiotene 2-trimemethylcyclopentyl]-bicyclo[3.1.0]hex-2-e
ne} (+)-beta-microbiotene i-methyl-cyclopentyl]-bicyclo[3.1.0.]hex-2(7
)-ene} and (-)-cyclocupar-9-en-2-one have been isolated and identified
from the essential oil of the liverwort Mannia fragrans and correlate
d with constituents of opposite configuration from Microbiota decussat
a (Cupressaceae). (C) 1998 Elsevier Science Ltd. All rights reserved.