PLANTS

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PLANTS
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PLANT PARTS

• Roots
• Leaves
• Stems
• Fruit
• Flowers

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PLANT PARTS
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Types of root systems
Fibrous roots
Fleshy roots
Taproot
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ROOT PARTS

• Root hairs
• Root cap
• Meristem

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Leaf parts

• blade
• petiole
• midrib
• apex
• base
• margin
• stomata

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LEAF PARTS
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LEAF TYPES

• simple
• compound
• needle

simple leaves
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Leaf arrangements

• simple leaves

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Leaves

• compound leaves

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STEMS

• central support structure of the plant

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STEM PARTS

• buds
• nodes
• internodes
• bark lenticels
• leaf scars
• scale scars

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FRUIT TYPES

• Simple derive from a single pistil
• Compound form from several ovaries at one time
• Accessory develop from parts other than the ovary

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Simple fleshy fruits
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Simple dry fruits
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Compound fruits

• Multiple
• Aggregate

separate flowers fused into a single structure
many ovaries on a single flower
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FLOWERS

• Flowers usually contain four main parts

• sepals
• petals
• stamens
• pistils

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FLOWER PARTS

• A complete flower has all four main parts.
• A perfect flower has stamens and a pistil.

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FLOWER PARTS

• The pistil is composed of
• Stigma structure at the top for collecting
  pollen
• Style support structure below the stigma
• Ovary enlarged part holding the ovules (eggs)

• The stamens consist of
• Anthers contain the pollen
• Filaments anther support

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FLOWERS
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PLANT CLASSIFICATIONS

• Plants are classified by flower and type

• A monoecious plant has male and female flowers on
  the same plant
• A dioecious plant has male and female flowers on
  different plants
• a pistillate plant has only female parts
• A staminate plant has only male parts
• A hermaphroditic plant has a perfect flower