METHOD: Chemical Assay CONDITIONS: Green House METHOD NARR: 10 seedlings of each PI were examind under a microscope to estimate trichome density. Means for trichome densities were calculated with a circular micrometer 1mm in diales of fresh foliage from mature plants were collected in order to determine presence of acetylated sucrose esters using capillary gas liquid chromatography. RESULTS NARR: Three distinct classes of sucrose esters were deteignificance of the different classes in relation to species boundaries is discussed.