Flowers

50,450 views 18 slides Feb 19, 2012
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FLOWERS

FLOWER “Bloom” or “Blossom” It is the part of the plant from which the fruit or seed is developed.

FUNCTION OF FLOWERS Effect Reproduction Brightening decorations Worshipping gods Herbal tea, medicines Tokens for love and esteem

FLOWER ANATOMY

REPRODUCTIVE ORGANS PISTIL – female reproductive organ of the flower which includes the: Stigma Style Ovary STAMEN – male reproductive organ Anther Filament

CLASSIFICATION OF FLOWERS Accdg . to PARTS: COMPLETE FLOWER A flower having all four floral parts: sepals, petals, stamens, and carpels . INCOMPLETE FLOWER A flower lacking either sepals, petals, stamens, or pistils

Accdg . to SYMMETRY : REGULAR FLOWER – a radially symmetric flower. Examples: CLASSIFICATION OF FLOWERS WATER LILY DAISY

IRREGULAR FLOWER – a flower in which one or more members of a whorl differ in form from other members Example: Pea flower CLASSIFICATION OF FLOWERS

Accdg . to SEXES : PERFECT – flower showing both carpels and stamens IMPERFECT – flower with only one reproductive organ, either female or male CLASSIFICATION OF FLOWERS

Accdg . to COMPOSITION : SIMPLE – a flower head made up of few flowers Example: Gumamela COMPOUND -  a flower head made up of many small flowers appearing as a single bloom. Example: marigold CLASSIFICATION OF FLOWERS

INFLORESCENCES It is the mode of development and arrangement of flowers on an axis.

TYPES OF INFLORESCENCE

EXAMPLES RACEME UNIPAROUS CYME UMBEL

EXAMPLES CAPITULUM SPIKE BIPAROUS CYME

EXAMPLES CORYMB SPADIX

POLLINATION The transfer of pollen from the anthers of a flower to the stigma of the same flower or of another flower.

TYPES OF POLLINATION Cross-pollination - occurs when pollen is delivered to a flower from a different plant Self-pollination -  occurs when pollen from one flower pollinates the same flower or other flowers of the same individual

AGENTS OF POLLINATION Wind Water Insects Mammals Birds
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