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来自维基百科,自由的百科全书
粉芽(soredium,複數為soredia)是地衣常見的一種無性生殖構造[1],為外觀呈粉狀的繁殖體,由地衣中真菌的菌絲包裹共生的綠藻或藍綠菌而形成。粉芽可能散布於地衣的表面,也可能集中於一個區域,形成粉芽堆(soralia)[2]。粉芽可以風力等方式散播到別處,以產生新的地衣[3]。
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