| Collector | Smith, A.R. |
| Number | 1685 |
| Collected with | T. Béliz, M. Grayum, P. Sleeper |
| Country | Costa Rica |
| Subpart | San José |
| County | |
| Locality | Along unnamed north fork of Río Zurquí (unstream from highway, north of tunnel), Cordillera Central |
| Coordinates | |
| Minimum elevation (m) | 1500 |
| Maximum elevation (m) | 1600 |
| Start date | 1986/01/18 |
| End date | 1986/01/18 |
| Family | Dryopteridaceae |
| Identification | Megalastrum atrogriseum (C.Chr.) A.R.Sm. & R.C.Moran |
| Determined by | Robin Moran (NY) & Jefferson Prado (SP) |
| Identification qualifier | |
| Field notes | Fronds to 1.5 m long |
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