| Name | Isoetes lithophila N. Pfeiffer |
| Authorship | N. Pfeiffer |
| Rank | Species |
| Placed in | Isoetes Linnaeus |
| Citation | 1922 Ann. Missouri Bot. Gard. 9: 135, pl.16 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Isoetes lithophila N. Pfeiffer |
| Identification made in | [no date] (5) |
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