The Flower What is the function of the flower for the plant?

Reproduction of Flowering Plants Accessory Flower Parts A. Sepals – leaf like, green structures that encircle the flower stem beneath the petals B. Petals – leaf like, colorful structures arranges in a circle called a corolla around the top of a flower stem

Sepals and Petals

Kinds of Flowers Complete – a flower that has all 4 organs (sepals, petals, stamens and pistils) Complete – a flower that has all 4 organs (sepals, petals, stamens and pistils) Incomplete – a flower that lacks one or more organs Incomplete – a flower that lacks one or more organs Male – have stamens but no pistils Male – have stamens but no pistils Female – have pistils but no stamens Female – have pistils but no stamens

Reproductive Flower Parts A. Stamen (male) filament – the long structure that supports the anther filament – the long structure that supports the anther anther – the structure at the tip of the filament that produces pollen containing sperm anther – the structure at the tip of the filament that produces pollen containing sperm

Stamen and Anther with Pollen

POLLEN GRAINS POLLEN GRAINS A pollen grain is an A pollen grain is an immature male gametophyte. immature male gametophyte. Pollen grains are Pollen grains are extremely durable; they have tough coats.

B. Pistil (female) stigma – at the top of the pistil; a sticky or feathery surface on which the pollen grains land and grow stigma – at the top of the pistil; a sticky or feathery surface on which the pollen grains land and grow style – the slender stalk of the pistil that connects the stigma to the ovary style – the slender stalk of the pistil that connects the stigma to the ovary ovary – eventually becomes the fruit; contains the ovules ovary – eventually becomes the fruit; contains the ovules ovules – will become seeds if they are fertilized ovules – will become seeds if they are fertilized

The Female Pistil pistil

Name the Reproductive Parts of this Flower

Parts of Flower

Use the diagram on page 612 to draw a typical flower and label the accessory and reproductive parts.

MONOCOT OR DICOT Count the petals or stamen Count the petals or stamen Monocots = flower parts in multiples of 3 Monocots = flower parts in multiples of 3 Dicots = flower parts in multiples of Dicots = flower parts in multiples of 4 or 5 4 or 5

Is this plant a monocot or a dicot? How do you know? 5 petals

Is this plant a monocot or a dicot? How do you know? 3 petals, 3 sepals (or 6 tepals)