| 单词 |
isoetopsida |
| 释义 |
Isoetopsida
Isoetopsida[‚ī·sō·ə′täp·sə·də] (botany) A class of the division Lycopodiophyta; members are heterosporous and have a distinctive appendage, the ligule, on the upper side of the leaf near the base. |
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