| Collector | Pedersen, H.AE. |
| Number | 41902 |
| Collected with | K. Larsen, S. S. Larsen, W. Nanakorn, W. Ueachirakan & P. Sirirugsa. |
| Country | Thailand |
| Subpart | PHITSANULOK |
| County | |
| Locality | "Phu Hin Rong Kla, 40 km E of Nakhon Thai; Lan Hin Poom. Sandstone plateau." |
| Coordinates | 17° 5' N 101° 7' E |
| Minimum elevation (m) | 1200 |
| Maximum elevation (m) | 1200 |
| Start date | 1990/12/11 |
| End date | 1990/12/11 |
| Family | Orchidaceae |
| Identification | Herpysma longicaulis Lindley |
| Determined by | H.AE.Pedersen, 1991 |
| Identification qualifier | |
| Field notes | Quite a few specimens growing close together at the edge of a relatively dry forest. Labellum white except for two red lines on the hypochil. Spur white. Rest of the tepals white with red/brown apices. Column white. Pollinia light yellowish. (DESCR |
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