Volume 24. 2020. 108 p. Paper bd.

Contents (partly):

- Peter O'Bryne:
Flora of Peninsular Malaysia - A Revision of Robiquetia (Orchidaceae: Aeridinae)
- Ong Poh Teck, Ruth Kiew et al.: Didymoplexis micradenia, a new orchid record for Peninsular Malaysia and a critically endangered species from the cement quarry on Gunung Kanthan, Perak
- Cheah Yih Horng: A Revision of Ludisia (Orchidaceae) in Peninsular Malaysia
- Ong Poh Teck and Nurliyana Abdul Latif: Liparis latifiana (Orchidaceae), a new species from Peninsular Malaysia
- Peter B. Adams: Dendrobium section Rhizobium Lindl.: A Review of Taxa 1800-2020
- Paul Ormerod: Five new Papuan Species of Stichorkis Thouars (Orchidaceae: Malaxideae)
- André Schuiteman: New Combinations in Calanthe and Porpax