Elizabeth Pesiu and Gaik Ee Lee conceived the project. Muhamad Syafiq Sarimi, Nor Aishah Shafie and Chin Wen Koid helped in the field work: collected and prepared some of the epiphyllous samples. Maziah Ghazaly helped with the logistics of the field work. Nik Norhazrina and Tamás Pócs contributed to some of the species identification. Elizabeth Pesiu and Gaik Ee Lee wrote the first draft and all the authors revised and made improvements to the manuscript.