| Collector | Holm-Nielsen, L. B. |
| Number | 18443 |
| Collected with | |
| Country | Ecuador |
| Subpart | PICHINCHA |
| County | |
| Locality | Road Alóag - Tandapi, W of the pass. Vertical rocks at the river cataract at junction of Río Tandapi and Río Pilatón. |
| Coordinates | 0° 22' S 78° 48' W |
| Minimum elevation (m) | 1800 |
| Maximum elevation (m) | 1800 |
| Start date | 1979/07/04 |
| End date | 1979/07/04 |
| Family | Pteridaceae |
| Identification | Pityrogramma trifoliata (L.)R.M. Tryon |
| Determined by | Arbelaez, A. L. (MO), 2000. |
| Identification qualifier | |
| Field notes | In large clusters. |
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