Flowers
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Flowers PowerPoint PPT Presentation


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Flowers . the reproductive structures of plants. 4 parts of a plant. Roots Stems Leaves Reproductive (includes flowers and fruits). Flowers have 4 different parts. Sepals Petals Stamens Pistil. Pedicel. The flower stem. Receptacle.

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Flowers

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Flowers

Flowers

the reproductive structures of plants


4 parts of a plant

4 parts of a plant

  • Roots

  • Stems

  • Leaves

  • Reproductive (includes flowers and fruits)


Flowers have 4 different parts

Flowers have 4 different parts

  • Sepals

  • Petals

  • Stamens

  • Pistil


Pedicel

Pedicel

  • The flower stem


Receptacle

Receptacle

  • The place on the stem where floral organs attach and originate.


Sepals

Sepals

  • Usually green; leaflike structures that protect the flower, as it forms and emerges.


Flowers

  • Sometimes sepals are colorful


Calyx

Calyx

  • The group of sepals on a flower


Petals

Petals

  • Located just inside the sepals

  • Leaf-like and often very colorful

  • Attract pollinators


Corolla

Corolla

  • The collection of petals on a flower


Perianth

Perianth

  • The sepals and the petals of a flower. (Not the reproductive parts.)


Tepals

Tepals

  • When there is no clear distinction between the sepals and the petals...they are called “tepals”.


The reproductive parts

The reproductive parts

  • Found at the center of the flower


Stamens

Stamens

  • Male reproductive parts of a flower

  • Arranged around the female parts


Anther

Anther

  • Part of the stamen

  • Produces and holds pollen


Filament

Filament

  • Stalk that holds up the anther


Pistil

Pistil

  • The female part of the flower


Stigma

Stigma

  • Found at the end of the pistil

  • Has a sticky surface to catch pollen


Style

Style

  • The neck of the pistil


Ovary

Ovary

  • Part of the pistil that contains the ovules


Ovule

Ovule

  • The part of the flower in which the eggs are produced and seeds develop


Complete flowers

Complete flowers

  • Have all 4 basic parts:

  • Sepals, petals, stamens and pistil


Incomplete flowers

Incomplete flowers

  • Flowers that are missing one of the four basic parts


Perfect flowers

Perfect Flowers

  • Flowers that have both male and female parts


Imperfect flowers

Imperfect flowers

  • Flowers that lack one of the sex structures


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