| Collector | Burger, W. |
| Number | |
| Collected with | G.Visconti, J.Gentry |
| Country | Costa Rica |
| Subpart | Alajuela |
| County | |
| Locality | Upper drainage of the Río Peñas Blancas below the Monteverde Cloud Forest Nature Reserve. Premontane rain forest formations with original forest and some pastures on hilly ground. |
| Coordinates | 9° 17' N 84° 8.6' W |
| Minimum elevation (m) | 1250 |
| Maximum elevation (m) | 1350 |
| Start date | 1977/02/25 |
| End date | 1977/02/26 |
| Family | Aspleniaceae |
| Identification | Asplenium rutaceum (Willd.)Mett. |
| Determined by | G.S.Visconti |
| Identification qualifier | |
| Field notes | Tufted fern growing on slender tree trunk in forest shade. Fronds held at 45ᵒ. |
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