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CCDB → Pteridophytes → Isoëtaceae → Isoetes → Isoetes prototypus D. M. Britton
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Isoetes prototypus D. M. Britton | Isoetes prototypus D. M. Britton | 22 | IPCN online | Britton, D. M. & J. P. Goltz. 1991. Isoetes prototypus a new diploid species from eastern Canada. Canad. J. Bot. 69: 277–281. |