Micromorphological characters of seed coats of Lepidium from China SEM EXAMINATION ON SEED COAT OF TRICHOSANTHES AND ITS TAXONOMIC SIGNIFICANCE Microwave-assisted Extraction of Paeoniflorin and Paeonol from Tree Peony Seed Coat and Content Determination STUDIES ON MICROMORPHA OF THE SEED COATS OF LARIX GMELINI FROM EIGHTEEN PLACES Phenolic acids from seed coats of Glycine max