Definition of medicinal plant according to WHO. Pharmacopoeias in force and medicinal plants reported in them. Sexual and vegetative reproduction in plants, hybrids, polyploids. General Pharmacognosy: crude drug, collection time. Food integrators containing medicinal plants and related legal rules. Methods and cares for drug collection and commercialization. Techniques of extraction of active principles from vegetal drugs. Extracting solutions and phytotherapic preparations: infusions, decoctions, tisanes, extracts, tinctures, essences, hydrolates, alcoholates. Analysis and control methods (Methods in Pharmacognosy of the Pharmacopoeias). Chemistry of plant metabolites of pharmaceutical interest. Systematics of lower plants and pharmacognosy of species of medicinal interest: Monera, Protista, Fungi, Plantae (algae, lichens, pteridophytes, gymnosperms). Systematics of Angiosperms, their reproduction: flower, inflorescences, fruits, seed. The main families of Angiosperms, and their species of pharmaceutical interest (description, plant drug, origin, uses, citation in Pharmacopoeias).