Notes on rattans (Arecaceae) from Vietnam Author Henderson, Andrew Institute of Systematic Botany, The New York Botanical Garden, Bronx, NY 10458 - 5126, U. S. A. E-mail: ahenderson @ nybg. org Forest Inventory and Planning Institute, Thanh Tri, Hanoi, Vietnam E-mail: dungfipi @ gmail. com Author Dung, Nguyen Quoc text Phytotaxa 2010 2010-08-31 8 25 33 journal article 6328 10.11646/phytotaxa.8.1.2 ccbf0321-20dc-4799-8575-3f018b87afcc 1179-3163 4893981 Daemonorops Blume in Roemer & Schultes (1830:1333) Calamus fissilis Henderson et al. (2008: 192) and C. nuichuaensis Henderson et al. (2008: 196) were based on incomplete specimens. Recently we have collected more complete specimens of both species. These have the inflorescence rachis bracts splitting to the base and becoming deciduous, and fruits with ruminate endosperm. These two character states are not found in Calamus , but are common in Daemonorops , and therefore we transfer both these species to Daemonorops . Based on the deciduous, splitting rachis bracts, the two species appear to belong to section Piptoshatha Beccari (1911: 27).