Trease and Evans' Pharmacognosy

acetate activity Africa alcohol alkaloids anthraquinone antitumour aromatic artemisinin assay bark biosynthesis bitter calcium oxalate CH3O Chapter chemical Chinese cm long colour commercial components compounds consists constituents contain COOH cork coumarins cultivated derived diameter Digitalis diuretic dried drug effect enzyme epidermis esters example extract fibres fixed oil flavonoids flowers fruits Genera include glucose glycosides groups herbal herbs hydrolysis hyoscyamine important India insect involved isolated known layer leaf leaves Leguminosae lignans material medicinal plants metabolites mixture molecule mucilage natural products obtained occur OCH3 odour officinalis OH OH parenchyma pericarp Pharm pharmaceutical Pharmacopoeia phenolic phloem Phytochemistry powdered prepared properties protein reported resin rhizome root saponins seeds senna sesquiterpene shows solution species starch stems steroidal stomata structure substances sugars surface tannins terpenes tion tissue toxic traditional transverse section treatment trees trichomes tropane usually vitamin volatile oil xylem yield