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Plant Sci. Recap

Plant Sci. Recap. Parts of a Flower. Stigma. Anther. Style. Pistil. Stamen. Filament. Ovary. Ovule. Petals. Sepals. Swollen base where are parts attach. Receptacle. Pedicel. Stem of the flower. Parts of a Flower. Stamen – the male part of a flower; Made up of two parts:

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Plant Sci. Recap

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  1. Plant Sci. Recap

  2. Parts of a Flower Stigma Anther Style Pistil Stamen Filament Ovary Ovule Petals Sepals Swollen base where are parts attach Receptacle Pedicel Stem of the flower

  3. Parts of a Flower • Stamen – the male part of a flower; Made up of two parts: • Anther– sack-like portion containing the pollen • Pollen – grain released by the flowers; Contains the sperm • Filament– stalk of a stamen; Holds up the anther • Flowers containing only stamens are called staminate

  4. Pistil – female part of the flower; Made up of three parts: • Stigma – sticky organ which receives the pollen grains • Style – a rod shaped middle part; Similar to the stalk of the stamen • Ovary – swollen base containing the eggs or ovules • Flowers having only female parts are called pistillate

  5. Petals – the showy, colorful leaf-like structures which often attract animals or insects for pollination • When all the petals are fused together, it is called the corolla • Sepals – beneath the petals; More leaf-like structures usually green in color • Protect the flower before it opens • When all the sepals are fused together, it is called the calyx

  6. Xylem Conducts water & dissolved minerals Furnish mechanical support

  7. Phloem Conducts foods made in leaves to rest of plant

  8. The outermost layer of cells of the leaf and of young stems and roots Epidermis

  9. Mesophyll Photosynthetic tissue of a leaf Located between layers of epidermis

  10. Stoma Small opening in the epidermis of leaves & stems through which gases pass

  11. Leaf Types • Simple • Compound Compound - Palmate Compound - Pinnate

  12. Leaf Arrangements Opposite Whorled Alternate

  13. Leaf Shapes Linear Elliptic Lanceolate Oblanceolate Obovate Palmate Wedge-shaped Arrow-shaped Ovate

  14. Leaf Margins Lobed-pinnate Lobed-palmate Serrated Entire Scalloped Toothed

  15. Leaf Veinations Parallel Pinnate Palmate Netted

  16. Stems Grasses Grass-likes Forbs Woody Solid Shrubs Hollow or Pithy Solid Not Jointed Solid

  17. Flowers • Inflorescence types Spike Raceme Panicle Umbel Head

  18. Flowers • Composite Heads Ray Flowers Disk Flowers Ray and Disk Flowers

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