The Japanese Society for Plant Systematics October 2015 201 Index to new names and combinations appearing in Acta Phytotaxonomica et Geobotanica 66(3) Hydrobryum luangnamtaense Koi & M. Kato, sp. nov. .................................................................. 183 Lasianthus bokorensis Naiki, sp. nov. ............................................................................................. 156 Lasianthus giganteus Naiki, sp. nov. ............................................................................................... 165 Lasianthus oblanceolatus Naiki, Tagane & Yahara, sp. nov. ............................................................. 170 Lasianthus stephanocalycinus Naiki, Tagane & Yahara, sp. nov. ...................................................... 173 Lasianthus viridiramulis Tagane, nom. nov. ................................................................................... 173 Thawatchaia laotica Koi & M. Kato, sp. nov. .................................................................................... 181 NII-Electronic Library Service