The Flower Main Flower Parts • Sepals • Petals • Stamen • Pistil Sepals • Green leaf like structures on the exterior of the flower. • Collectively the sepals are called the Calyx • Sepals fold back as the flower opens. Petals • Are colorful and leaf like. • Their purposed is to attract pollinators. • The collection of petals is called the Corolla. Stamen • Male reproductive part of flower. • Filament – part of stamen that holds anther. • Anther – part of stamen that produces pollen. • Pollen – contains the male sex cells. Pistil • The female part of the flower. • Stigma – is found at the end of the pistil and has a sticky surface. • Style – the neck of the pistil, connects the stigma with the ovary. • Ovary – contains the ovule • Ovule – produces egg and where the seed develops. Flower Diagram Complete Flower Flower that contains sepals, petals, stamen and pistil. Incomplete Flower A flower that lacks one of the following: sepals, petals, stamen or pistil. Perfect Flower • Contains both mail and female parts. Imperfect Flower Flowers that are male, female or neither. • Pollination – transfer of pollen from anther to stigma • Fertilization – joining of male and female sex cells