This is Dendrobium compressum, and follow to new nomenclatur taxonomic move to genus Eurycaulis. It is member of section platycaulon,
Many person do wrong to determine ID this orchid as Dendrobium lamellatum. Dendrobium lamellatun native and endemic to west Java only. The characterictic made by Blume with lips have 3 keels.
Dendrobium compressum have characteristic made by Lindl. with lip have more than 3 keels, usually 5 keels, and it is occurs in Java, Sumatra, Peninsula, Thailand, and Borneo species.
Homotypic Synonyms:
Dendrobium compressum Lindl., Edwards's Bot. Reg. 28(Misc.): 63 (1842).
Eurycaulis compressus (Lindl.) M.A.Clem., Telopea 10: 284 (2003).
Description and original illustration
see at LINK
Distribution:
Indo-China to W. & C. Malesia
41 MYA THA
42 BOR JAW MLY PHI SUM
Varieties Colour by Distribution
 |  |  |
| Eurycaulis compressus Peninsular Malaysia | Eurycaulis compressus Sumatra | Eurycaulis compressus Borneo |
a
