ovulate

• In the most extreme condition in uni - ovulate cone , the female reproductive unit ( fru ) occupies the position of the terminal bud . an evolutionary trend of reduction is supported in the genus from tri - ovulate to uni - ovulate cone , in which the bract number and seed number are reduced , and the seed size and seed surface sculpture are increasing
  总之，麻黄属雌球花有简化的趋势，伴随着这种趋势，雌球博士学位论文中国麻黄属植物的分类? ?兼论麻黄属的演化花苞片数目减少、种子数目减少、种子体积增大、表面复杂度增加。