| Collector | Terneus, E. |
| Number | 316 |
| Collected with | P. Ramsay |
| Country | Ecuador |
| Subpart | TUNGURAHUA |
| County | |
| Locality | Parque Nacional Llanganates, laguna Aucacocha |
| Coordinates | 1° 9' 36'' S 78° 19' 37'' W |
| Minimum elevation (m) | 3750 |
| Maximum elevation (m) | 3750 |
| Start date | 1999/01/13 |
| End date | 1999/01/13 |
| Family | Isoetaceae |
| Identification | Isoetes karstenii A.Braun |
| Determined by | J.B.S. Pereira |
| Identification qualifier | |
| Field notes | Helecho acuático, creciendo en zonas profundas al rededor de la laguna. Forma comunidades aisladas y crece en sustratos fangosos. |
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