单词 | Marsileales |
释义 | Marsileales [mär´sil·ē`ā·lēz] BOTANY A small monofamilial order of heterosporous, leptosporangiate ferns (Polypodiophyta); leaves arise on long stalks from the rhizome, and sporangia are enclosed in modified folded leaves or leaf segments called sporocarps. |
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