| Collector | Ollgaard, B. |
| Number | 99657 |
| Collected with | |
| Country | Ecuador |
| Subpart | SUCUMBIOS |
| County | |
| Locality | Road / trail Gonzalo Pizarro-Chuscuyacu, roadside in forest and sandy river plain at Río Dué. |
| Coordinates | 0° 2' N 77° 23' W |
| Minimum elevation (m) | 500 |
| Maximum elevation (m) | 600 |
| Start date | 1992/01/27 |
| End date | 1992/01/27 |
| Family | Pteridaceae |
| Identification | Pityrogramma calomelanos (L.)Link |
| Determined by | Arbelaez, A. L. (MO), 2000. |
| Identification qualifier | |
| Field notes | On gravelly river plain at Río Dué, with 99656 and 99655. |
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