Angiosperms V/S Gymnosperms
ANGIOSPERMS
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GYMNOSPERMS
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Definition
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Angiosperms are those plants having seeds protected by the ovary
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Gymnosperms are those plants having seeds not protected by the ovary. So the seeds are naked in Gymnosperms.
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Life Cycle
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Seasonal
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Evergreen
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Reproductive Structure
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They are present in the form of flowers
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They are present as cones
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Cotyledons
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Monocot or Dicot
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Absent
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Flowers
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The flowers are either unisexual (castor and Maize) or bisexual (Brassica)
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The flowers are always unisexual.
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Thalamus
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The thalamus is small, conical, flat or cup shaped.
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The thalamus is elongated represented by the long axis of the female plant
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Parts of Flowers/ Cones
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The calyx and corolla are arranged in cyclic whorls on the thalamus.
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Mesosporophylls are arranged in a spiral manner.
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Male Gametophyte
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Male gametophyte completely reduced
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Male gametophyte represented by two prothallial cells
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Leaves
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Leaves are generally flat.
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Leaves are needle or scale like.
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Wood
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Hard Wood
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Soft wood
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