the ovules of cycas are orthotropous that means????
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The body of ovule is called nucellus (megasporangium), covered by a thick integument in all sides except an opening called micropyle. The apex of the nucellus has a pollen chamber and a nucellar beak. The integument consists of three distinct layers: outer and inner fleshy layers and middle stony layer.
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Cycads ovule is 'Orthotropous and bitegmic. ' Cycads plants are dioecious that belong to the family Cycadaceae forming 'seed cones' on female plant and pollen cones called strobilus on the male plants. ... The cycads plant pollinates mainly by wind pollination.
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