Chemical aids to taxonomy.
D005075:Biological Evolution; D002338:Carotenoids; D003580:Cytochromes / Q000032:analysis; D004739:England; D010940:Plant Proteins / Q000032:analysis; D010944:Plants / Q000145:classification*; D011058:Pollen; D011108:Polymers; D013170:Spores; D013729:Terpenes / Q000032:analysis
D003580:Cytochromes; D010940:Plant Proteins; D011108:Polymers; D013729:Terpenes; D002338:Carotenoids