Calamus latus A.J.Hend. Calamus lauterbachii Becc. Calamus laxissimus Ridl. Calamus leiocaulis Becc. ex K.Heyne Calamus leloi J.Dransf. Calamus lengguanii A.J.Hend. Calamus leptopus Griff. Calamus leptospadix Griff. Calamus leptostachys Becc. ex K.Heyne Calamus lobatus A.J.Hend., Pitopang & Moh.Iqbal Calamus lobbianus Becc. Calamus loherianus (Becc.) W.J.Baker Calamus longibracteatus W.J.Baker Calamus longipes Griff. Calamus longipinna K.Schum. & Lauterb. Calamus longisetus Griff. Calamus longispatha Ridl. Calamus longiusculus A.J.Hend. Calamus lucysmithiae W.J.Baker & J.Dransf. Calamus macrochlamys Becc. Calamus macropterus Miq. Calamus macrorhynchus Burret Calamus macrosphaerion Becc. Calamus maculatus (J.Dransf.) W.J.Baker Calamus mahanandensis S.Mondal, S.K.Basu & M.Chowdhury Calamus maiadum J.Dransf. Calamus malawaliensis J.Dransf. Calamus manan Miq. Calamus manglaensis A.J.Hend. & N.Q.Dung Calamus manillensis (Mart.) H.Wendl. Calamus marginatus (Blume) Mart. ex Walp. Calamus maturbongsii W.J.Baker & J.Dransf. Calamus megaphyllus Becc. Calamus meghalayensis A.J.Hend. Calamus melanacanthos Mart. Calamus melanochaetes (Blume) Miq. Calamus melanochrous Burret Calamus melanoloma Mart. Calamus melanorhynchus Becc. Calamus metzianus Schltdl. Calamus micracanthus Griff. Calamus micranthus Blume Calamus microsphaerion Becc. Calamus minahassae Warb. ex Becc. Calamus minor A.J.Hend. Calamus minutus J.Dransf. Calamus mirabilis Mart. Calamus mitis Becc. Calamus modestus T.Evans & T.P.Anh Calamus mogeae J.Dransf. Calamus mollispinus (J.Dransf.) W.J.Baker Calamus moorei (J.Dransf.) W.J.Baker Calamus moorhousei Furtado Calamus moseleyanus Becc. Calamus moszkowskianus Becc. Calamus moti F.M.Bailey Calamus muelleri H.Wendl. Calamus multispicatus Burret Calamus muricatus Becc. Calamus myriacanthus Becc. Calamus myrianthus Becc. Calamus nagbettai R.R.Fernandez & Dey Calamus nambariensis Becc. Calamus nanduensis W.J.Baker & J.Dransf. Calamus nannostachys Burret Calamus nanodendron J.Dransf. Calamus nematospadix Becc. Calamus nicobaricus Becc. Calamus nielsenii J.Dransf. Calamus nitidus Mart. Calamus notabilis A.J.Hend. Calamus novae-georgii W.J.Baker & J.Dransf. Calamus nudus W.J.Baker & S.Venter Calamus nuichuaensis A.J.Hend., N.K.Ban & N.Q.Dung Calamus nuralievii A.J.Hend. & N.Q.Dung Calamus obiensis A.J.Hend. Calamus oblatus (J.Dransf.) W.J.Baker Calamus oblongus Reinw. ex Blume Calamus occidentalis Witono & J.Dransf. Calamus ochrolepis (Becc.) W.J.Baker Calamus ocreatus (A.J.Hend. & N.Q.Dung) W.J.Baker Calamus oligostachys T.Evans, Sengdala, Viengkham, Thamm. & J.Dransf. Calamus optimus Becc. Calamus oresbiopsis A.J.Hend. Calamus oresbius W.J.Baker & J.Dransf. Calamus ornatus Blume Calamus ovoideus Thwaites ex Trimen Calamus oxleyanus Teijsm. & Binn. ex Miq. Calamus oxleyoides A.J.Hend. Calamus oxycarpus Becc. Calamus oxycoccus W.J.Baker Calamus pachystemonus Thwaites Calamus padangensis Furtado Calamus pahangensis A.J.Hend. Calamus pandanosmus Furtado Calamus papuanus Becc. Calamus parutan Fernando Calamus parvulus A.J.Hend. & N.Q.Dung Calamus paspalanthus Becc. Calamus paulii J.Dransf. Calamus pedicellaris (Becc.) W.J.Baker Calamus pedicellatus Becc. ex K.Heyne Calamus penicillatus Roxb. Calamus perakensis Becc. Calamus peregrinus Furtado Calamus periacanthus (Miq.) Miq. Calamus pertenuis A.J.Hend. & Rustiami Calamus pholidostachys J.Dransf. & W.J.Baker