Daemonorops nuichuaensis (A.J.Hend., N.K.Ban & N.Q.Dung) A.J.Hend., comb. nov.

Basionym:— Calamus nuichuaensis Henderson et al. (2008: 196) .

Type:—VIETNAM. Ninh Thuan: Ninh Hai District, Nui Chua National Park, near summit of mountain, forest on rocky slopes, 11 ° 48 ’N, 109°10’E, ca. 800 m, 27 July 2007, A. Henderson, N.K. Ban, & A R. Cui 3468 (holotype: HN!, isotypes: K! NY!) .

Additional material studied:— VIETNAM. Ninh Thuan Province: Ninh Hai District, Nui Chua National Park, 11.80N, 109.16E, ca. 800 m, 26 Oct 2009, Henderson et al. 3646 (HN, NY).

The transfer of these two species brings the number of Daemonorops in Vietnam to five: D. jenkinsiana (Griffith) Martius (1853: 327), D. poilanei Dransfield (2001: 663), D. mollispina Dransfield (2001: 662), D. fissilis and D. nuichuaensis . All but D. jenkinsiana are endemic to Vietnam and belong to section Piptospatha . Recent field work revealed another two species new to science, making a total of seven Daemonorops for Vietnam.