Microsporangia

A microsporangium (plural microsporangia) is a sporangium that produces spores that give rise to male gametophytes. Microsporangia are notable in spikemosses, and a minority of ferns. In gymnosperms and angiosperms (flowering plants), the microsporangia produce the microsporocyte, also known as the microspore mother cell, which then creates four microspores through meiosis. The microspores divide through mitosis to create pollen grains. The term is not used for bryophytes.

单词	Microsporangia
释义	Microsporangia 英语例句库 The ontogeny of epiphyllous microsporangia Ginkgo indicated that the microsporophyll in Ginkgo is of phyllome origin.Possibly, the epiphyllous microsporangia is a peculiar chimera. 叶生小孢子囊银杏的个体发生，表明银杏的小孢子叶有叶性来源的性质，叶生小孢子囊银杏可能是一种奇特的嵌合体。英语百科 Microsporangia A microsporangium (plural microsporangia) is a sporangium that produces spores that give rise to male gametophytes. Microsporangia are notable in spikemosses, and a minority of ferns. In gymnosperms and angiosperms (flowering plants), the microsporangia produce the microsporocyte, also known as the microspore mother cell, which then creates four microspores through meiosis. The microspores divide through mitosis to create pollen grains. The term is not used for bryophytes.
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