| Collector | Fay, A. |
| Number | 4250 |
| Collected with | Louis Fay |
| Country | Ecuador |
| Subpart | Morona-Santiago |
| County | |
| Locality | Gualaquiza. Within 3 km of town og Gualaquiza. In swampy forest, east of town and of Rio Gualaquiza |
| Coordinates | 3° 24' S 78° 34' W |
| Minimum elevation (m) | 1000 |
| Maximum elevation (m) | 1000 |
| Start date | 1993/05/08 |
| End date | 1993/05/08 |
| 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, fronds coming from ground a few/several cm apart. Stipe 130-145, blade 115-125 cm. Basal pinnae basiscopically developed, others nearly even. Very slightly reduced at base, rather quichly reduced to apex, which resembles pinnae tips |
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