How to make floral diagrams of flowers?
Floral formulae and floral diagrams Botanists do not need to have a lengthy description of a flower to understand its structure. They use a simple expression ā the floral formula. This tells them the number of parts and a good deal about their arrangement. The letters K, C, A, and G stand for calyx, corolla, androecium, and gynecium, respectively. P (for perianth) is used if the sepals and petals are alike. The formula for a buttercup is K5 C5 Aā Gā, where ā means “numerous”. A line under the carpel figure means that the flower is hypogynous. Above the figure it indicates epigyny. Where parts are joined, brackers surround the figure. The formula does not give a complete description. A floral diagram and a section cut through the flower are required to make the structure quite clear. The floral diagram consists of a plan view of the flower with the organs arranged on circles or spirals, showing the degree of overlapping, any fusion of parts or irregularity and the position relative to t
