Early archegonial development is already evident two weeks after pollination.
颈卵器的早期发育在授粉后两周内就业已明显。
Archegonial neck usually inclines or curves towards the base of the prothallus at maturity.
颈卵器成熟后，颈部常向原叶体基部倾斜或弯曲。
Many forest tree species have multiple archegonia which,after fertilization produce a number of proembryos.
许多林木树种都有颈卵器，受精以后便产生许多原胚。
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