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CCDB → Pteridophytes → Isoëtaceae → Isoetes → Isoetes × altonharvillii Musselman & R. D. Bray
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Isoetes × altonharvillii Musselman & R. D. Bray | Isoetes × altonharvillii Musselman & R. D. Bray | 22 | IPCN online | Musselman, L. J., D. A. Knepper, R. D. Bray, C. A. Caplen & C. Ballou. 1995. A new Isoetes hybrid from Virginia. Castanea 60(3): 245–254. |