... hemitropicwinding半线圈绕组 hemitropous横生的 hemitropousovule横生胚珠 ...
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hemitropous ovule [植] 横生胚珠
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The ovary contains 20-23 ovules. The ovules are hemitropous, with 2 integuments, tenuinucellate and the archesporial cell functions directly as the mega-spore mother cell.
子房具胚珠20—23枚,胚珠横生,珠被二层,薄珠心,孢原细胞直接起大孢子母细胞作用。
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