title: [Biological and taxonomical concepts of chemical races (author's transl)].
mesh_terms: D000470:Alkaloids / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000145:classification*; D011110:Polymorphism, Genetic
chemical_list: D000470:Alkaloids
vernacular_title: Biologische und systematische Bedeutung von chemischen Rassen