11th Class Biology Morphology of Flowering Plants (Root, Stem And Leaf)

  • question_answer 50)
      Distinguish between families - Fabaceae, Solanaceae, Liliaceae on the basis of gynoecium characteristics (with figures). Also write economic importance of any one of the above family.

    Answer:

                      The difference between the three families on the bases of characteristics of hynoecium areas follows
    Gynoecium Characteriseies Fabaceae Solanaceae Liliaceae
    Carpels Monocarpellary free, single BicarpellarySyncarpous Tricarpellarysyncarpous
    Ovary Superior unilocular Superior bilocular(2-4locular in tomato) Superior
    Ovules Margin in two alternate rows  Many in each locular Trilocular
    Placentation Marginal Axile 2-many ovules in each locules
    Style Bent, single Simple Simple but may be united or separate
    Stigma Floralformula Simple and capitate Simple and lobe Free or fused trilobed
             
    Gynoecium Characteristics Fabaceae   Solanaceae Liliaceae
    Diagram of gnoecium    
    Floral diagram             Examples Garlic, onion, Colchicum   Potato, tomato, brinjal, datura, etc     All pulse, sun hemp, Lupin, Indigo, Cassia
    Economic Importance of Fabaceae Plants of this family are the sources of pulses and edible oils. Dye is extracted fromIndigo era which is a plant of this family. It serves as a source of various other productslike fibers (sun hemp), facter (Sesban/a and Trifolium), ornamentals (lupin, sweet pea)and medicine (multiathi).


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