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大孢子囊
释义
大孢子囊
Encyclopedia
理学
〔植物形态与结构〕
释
megasporangium
大孢子囊
孢子体进行无性生殖的结构。存在于部分石松类植物(Lycophytes)即水韭科(Isoetaceae)、卷柏科(Selageinellaceae),水生蕨类植物(Ferns)即蘋科(Marsileaceae)、槐叶蘋科(Salviniaceae),以及所有种子植物(spermatophytes)的成熟孢子体上。
Biology
macrosporangium
大孢子囊
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National Music
national musical film
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National Music Government
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National Nature Reserve for Ancient Coast and Wetland in Tianjin
National Nature Reserve for Chinese White Dolphin in Zhujiang Esturay,Guangdong
National Nature Reserve forCoastal Landform in Chengshantou,Dalian
National Nature Reserve for Coral Reef in Xunwen, Guangdong
National Nature Reserve for Dugong in Hepu,Guangxi
National Nature Reserve for Marine Ecology in DazhouIsland,Wanning, Hainan
National Nature Reserve for Marine Ecology in Jiushan Archipelago,Zhejiang
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