New names and combinations in Marsdenia (Asclepiadaceae: Marsdenieae) from Asia and Malesia (excluding Papusia)

Nomenclatural notes are provided for 13 species of Marsdenia R.Br. including a number of taxa formerly included in Gymnema R.Br., Bidaria (Endl.) Decne. and Jasminanthes Blume. New names provided in Marsdenia are M. jasminoides P.I.Forst. (Jasminanthes suaveolens Blume), M. ridleyi P.I.Forst. (Stephanotis parviflora Ridley) and M. vajanicum P.I.Forst. (Gymnema javanicum Blume). New combinations made in Marsdenia are M. chinensis (Champ.) P.I.Forst. (Stephanotis chinensis Champ.), M. chunii (Tsiang) P.I.Forst. (Stephanotis chunii Tsiang), M. dissitiflora (Ridley) P.I.Forst. (Gymnema dissitiflorum Ridley), M. hirta (Ridley) P.I.Forst. (Gymnema hirtum Ridley), M. littoralis (Blume) P.I.Forst. (Gymnema littorale Blume), M. maingayi (Hook.f.) P.I.Forst. (Stephanotis maingayi Hook.f.), M. pachyglossa (Schltr.) P.I.Forst. (Gymnema pachyglossa Schltr.), M. pilosa (Kerr) P.I.Forst. (Stephanotis pilosa Kerr), M. sylvestris (Retz.) P.I.Forst. (Periploca sylvestre Retz.) and M. tingens (Roxb.) P.I.Forst. (Asclepias tingens Roxb.). A lectotype is selected for Stephanotis parviflora. Detailed descriptions are provided for Marsdenia tingens, M. littoralis, M. tinctoria and M. jasminoides.