Flowers
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Flowers have reproductive organs called pistils and stamens. Pistils are the female organs and stamens are the male organs. Flowers can be classified based on their parts, symmetry, sex, composition, and inflorescence. Pollination is the transfer of pollen from the anthers to the stigma and can be cross-pollination between plants or self-pollination within a plant. Common agents of pollination include wind, water, insects, mammals, and birds.
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Flowers
- 1. FLOWERS
- 2. FLOWER “Bloom” or “Blossom” It is the part of the plant from which the fruit or seed is developed.
- 3. FUNCTION OF FLOWERS Effect Reproduction Brightening decorations Worshipping gods Herbal tea, medicines Tokens for love and esteem
- 5. REPRODUCTIVE ORGANS PISTIL – female reproductive organ of the flower which includes the: Stigma Style Ovary STAMEN – male reproductive organ Anther Filament
- 6. 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
- 7. CLASSIFICATION OF FLOWERS Accdg. to SYMMETRY: REGULAR FLOWER – a radially symmetric flower. Examples: WATER LILY DAISY
- 8. CLASSIFICATION OF FLOWERS IRREGULAR FLOWER – a flower in which one or more members of a whorl differ in form from other members Example: Pea flower
- 9. CLASSIFICATION OF FLOWERS Accdg. to SEXES: PERFECT – flower showing both carpels and stamens IMPERFECT – flower with only one reproductive organ, either female or male
- 10. 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
- 11. INFLORESCENCES It is the mode of development and arrangement of flowers on an axis.
- 13. EXAMPLES UNIPAROUS UMBEL RACEME CYME
- 14. EXAMPLES CAPITULUM SPIKE BIPAROUS CYME
- 15. EXAMPLES CORYMB SPADIX
- 16. POLLINATION The transfer of pollen from the anthers of a flower to the stigma of the same flower or of another flower.
- 17. 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
- 18. AGENTS OF POLLINATION Wind Water Insects Mammals Birds