Essential Oil Constituents of Mosses Species from Ecuador.

<italic>Breutelia tomentosa</italic> (Sw. ex Brid.) A. Jaeger, <italic>Leptodontium viticulosoides</italic> (P. Beauv.) Wijk & Margad., <italic>Macromitrium perreflexum</italic> Steere, <italic>Campylopus richardii</italic> Brid., <italic>Rhacocarpus purpurascens</italic> (Brid.) Paris., and <italic>Thuidium peruvianum</italic> Mitt. essential oils were obtained by hydrodistillation. Using gas chromatography/flame ionization detector (GC/FID) and Gas chromatography/Mass spectrometry (GC/MS), a total of ninety four constituents were identified, representing for 80.5 93.8 % of the chemical composition. The major components were epizonarene (8.7 %) and α-selinene (6.7 %) in the oil of <italic>B. tomentosa</italic>, β-selinene (13.5 %) and α-selinene (10.5 %) in the oil of <italic>L. viticulosoides</italic>, selina-3,11-dien-6-α-ol (19.7 %) and curcuphenol (10.6 %) in the oil of <italic>M. perreflexum</italic>, epi-α-muurulol (15.1 %) and α-cadinol (12.5 %) in the oil of <italic>C. richardii</italic>. α-cadinol (36.8 %) and α-santalene (8.4 %) in the oil of <italic>R. purpurascens</italic>, and phytol (21.7 %) and valerenol (10.1 %) in the oil of <italic>T. peruvianum</italic>. [ABSTRACT FROM AUTHOR]