| Collector | Larsen, K. |
| Number | 42694 |
| Collected with | Supee S. Larsen, Susanne S. Renner, C. Niyomdham, W. Ueachirakan & P. Sirirugsa |
| Country | Thailand |
| Subpart | SATUN |
| County | |
| Locality | Ton Pliew waterfall. Evergreen forest along stream. |
| Coordinates | 6° 45' N 100° 7' E |
| Minimum elevation (m) | 75 |
| Maximum elevation (m) | 100 |
| Start date | 1992/06/06 |
| End date | 1992/06/06 |
| Family | Arecaceae |
| Identification | Calamus castaneus Griff. |
| Determined by | |
| Identification qualifier | |
| Field notes | (As 42707, but male) Acaulescent, clustering understory palm. No cirrus, no flagellum. Leaves to 5 m long with 40 regularly spaced leaflets on each side of the rachis. Inflorescence with 4 partial inflor. Total length of inflorescence ca. 70 cm. F |
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