macrospore
大胞子
mac·ro·spore /ˈmækroˌspor/ 名詞
(拉macrospora)大孢子母,大孢子
Mac·ro·spore n. Bot. One of the specially large spores of certain flowerless plants, as Selaginella, etc.
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macrospore
n : larger of the two types of spore produced in heterosporous
plants; develops in ovule into a female gametophyte [syn:
megaspore]