Growing straight , so that the micropyle is at the end opposite the stalk. Used an ovule.直生的直立生长以至珠孔在茎的另一端的. 用于形容胚珠....

micropyle的音标：micropyle的英式发音音标为：['maɪkrəpɪl]micropyle的美式发音音标为：['maɪkrəpɪl]...

n.珠孔，卵孔...