| nymphaea tetragona | | canada: ontario, peterborough co., nogies creek research station, harvey twp. | | 1331050823 |
| nymphaea tetragona | | canada: ontario, thunder bay dist., bog 1 mi. s of hwy 17a, 12 mi. w of port arthur, oliver twp. | | 1331050644 |
| nymphaea tetragona | | canada: ontario, thunder bay dist., bog 1 mi. s of hwy 17a, 12 mi. w of port arthur, oliver twp. | | 1328838039 |