| Collector | Magintan, D. |
| Number | 519 |
| Collected with | A.D. Poulsen & B. Albaek |
| Country | Malaysia |
| Subpart | SABAH |
| County | |
| Locality | Lahad Datu. Danum Valley Field Centre, Nature trail. Mixed Primary Dipterocarp forest. |
| Coordinates | 4° 40' N 117° 29' E |
| Minimum elevation (m) | 150 |
| Maximum elevation (m) | 150 |
| Start date | 1998/03/30 |
| End date | 1998/03/30 |
| Family | Thelypteridaceae |
| Identification | Pronephrium asperum Shieh & Tsai |
| Determined by | D. Magintan, Feb.1999, (HUMS). |
| Identification qualifier | |
| Field notes | "Terrestrial fern, rhizome creeping, dark brown stem; leaves dark green above, mid green below." |