[1] Lecture 1

• • Receptacle - flower parts attach here
  • Peduncle - stalk of the flower
  • Sepal - outer whorl of floral parts, all sepals are called a calyx
  • All petals together make up the corolla, which form the next whorl
• Collective petals

  Corolla
• Outer whorl of floral parts

  Sepal
• Collective sepals

  Calyx
• Stalk of the flower

  Peduncle
• The male reproductive part is the stamen, made up of the anther and filament
• The female reproductive part is the pistil, made of the stigma and the style
• Egg and sperm fuse in the ovule and develops into the seed
• Stalk supporting the anther

  Filament
• Another term for the ovary

  Carpel
• Raises the stigma to enhance pollination

  Style
• Part of the flower that receives the pollen

  Stigma
• Radially symmetrical – petals develop equally

  Bilaterally symmetrical – petals do not develop equally
• Flower type that has all major parts (sepal, petal, stamen, pistil)

  Complete flower
• Flower type that lacks one or more major parts

  Incomplete flower
• Flower type that has an androecium and gynoecium even if petals and sepals are missing

  Perfect flower
• Ovary type where it lies above the sepals, petals and stamen

  Superior ovary
• Ovary type where the sepals, petals, and pistils rest on top of the ovary

  Inferior ovary
• Ovary type where it is surrounded by the receptacle, and the petals and stamens branch from the receptacle above the ovary

  Incomplete ovary
• Label the different ovary types

  A) Superior ovary

  B) Inferior ovary

  C) Incomplete ovary

  
• Flower parts occurring in 3 or multiples of 3

  Monocots
• Mostly herbaceous, non-woody plants

  Monocots
• 80% of all angiosperms

  Dicots
• Flower parts are multiples of 4 or 5

  Dicots