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类别全部 - stigma - pollination - fertilisation

作者：ong hui 17 年以前

498

Flowering plant-junhui

Flowering plant-junhui

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Flowering plant

female

stigma

ovary

style

ovule

male

anther

pollen grains

filament

fertilisation

pollen grain forms tube to reach ovule

male and female cells fuse

pollination

pollen grain from anther to stigma

self

cross