| 单词 | macrosporangium |
| 释义 | macrosporangium (once / 738707 pages) n WORD FAMILY macrosporangium: macrosporangia USAGE EXAMPLESC, longitudinal section of a spike, with a single macrosporangium at the base; the others, microsporangia, × 3. Campbell, Douglas Houghton, Elements of Structural and Systemat...(2010) The spores are of two kinds, as in Selaginella, but the macrosporangia contain numerous macrospores. Campbell, Douglas Houghton, Elements of Structural and Systemat...(2010) n a plant structure that produces megaspores Syn|Hyper megasporangium sporangium, spore case, spore sac organ containing or producing spores |
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