| Collector | Nielsen, I. |
| Number | 761 |
| Collected with | |
| Country | Malaysia |
| Subpart | Sarawak |
| County | |
| Locality | Summit ridge of B. Berar. Sclerophyllous ridge vegetation. G. Mulu Nat. Park |
| Coordinates | 4° 5' N 114° 55' E |
| Minimum elevation (m) | 0 |
| Maximum elevation (m) | 0 |
| Start date | 1978/03/19 |
| End date | 1978/03/19 |
| Family | Arecaceae |
| Identification | Calamus nielsenii J.Dransf. |
| Determined by | A. Henderson |
| Identification qualifier | |
| Field notes | 1 m high, flowers greenish white |
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