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sorus 音标拼音: [s'ɔrəs] n. 芽胞囊群 芽胞囊群 sorus n 1: a spore-producing structure in certain lichens and fungi 2: cluster of sporangia usually on underside of a fern frond Sorus \So"rus\, n.; pl. {Sori}. [NL., fr. Gr. ? a heap.]
1. (Bot.) One of the fruit dots, or small clusters of sporangia, on the back of the fronds of ferns. [1913 Webster] 2. (a) In parasitic fungi, any mass of spores bursting through the epidermis of a host plant. (b) In lichens, a heap of soredia on the thallus. [Webster 1913 Suppl.]
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