Cruciferae is a very extensive natural order of dicotyledonous plants, consisting of herbs which all have flowers with six stamens, two of which are short, and four sepals and petals, the spreading limbs of which form a Maltese cross, whence their name. The fruit is a pod with a membranous placenta dividing it into two cells. The mustard, water-cress, turnip, cabbage, scurvy-grass, radish, horse-radish, etc, belong to this family. They have nearly all a volatile acridity dispersed through every part, from which they have their peculiar odour and sharp taste, and their stimulant and antiscorbutic qualities. None are really poisonous. Some are found in our gardens because of their beauty or fragrance, as the wallflower, stock, candytuft, etc. Research Cruciferae