2007 Volume 58 Issue 1 Pages 1-17
Five new species of the genus Plagiostachys (Zingiberaceae) from Borneo, P. brevicalcarata, P. longicaudata, P. megacarpa, P. roseiflora, and P. viridisepala are described and illustrated. Of these, P. brevicalcarata, P. longicaudata, and P. viridisepala have mucilaginous inflorescences, while the inflorescences of the other two species are non-mucilaginous. A key to the Bornean species of Plagiostachys is also provided.