| Collector | Holm-Nielsen, L. B. |
| Number | 26904 |
| Collected with | Jaramillo, J. & Coello, F. & Asanza, E. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Slopes of Guagra Urcu, on the loma above Río Bretania. Montane forest. |
| Coordinates | 0° 28' S 77° 45' W |
| Minimum elevation (m) | 2550 |
| Maximum elevation (m) | 2600 |
| Start date | 1980/09/24 |
| End date | 1980/09/24 |
| Family | Dryopteridaceae |
| Identification | Megalastrum biseriale (Baker) A.R. Sm. & R.C. Moran |
| Determined by | R.C. Moran (NY), J. Prado (SP) & M. Sundue (NY) |
| Identification qualifier | |
| Field notes | |
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