| Collector | Fay, A. |
| Number | 4046 |
| Collected with | Louis Fay |
| Country | Ecuador |
| Subpart | Morona-Santiago |
| County | |
| Locality | Morona. Near city of Macas. Forest and roadside. In shady, muddy, deep forest |
| Coordinates | 2° 20' S 78° 8' W |
| Minimum elevation (m) | 1100 |
| Maximum elevation (m) | 1100 |
| Start date | 1993/11/07 |
| End date | 1993/11/07 |
| Family | Dryopteridaceae |
| Identification | Megalastrum praetermissum R.C.Moran, J.Prado & Sundue |
| Determined by | R.C. Moran (NY), J. Prado (SP) & M. Sundue (NY) |
| Identification qualifier | |
| Field notes | Stem not seen, but fronds in a clump. Stipe 105-145, blade 110-145, longest pinna 70 cm. Pinnea set at 50-55 |
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