The species richness of mosses in the study area is very high; 40% of the total of 766 species and infra-specific taxa reported from Borneo and 47% of the total of 651 species and infra-specific taxa reported from Sabah (Andi and Suleiman 2005, Suleiman et al. 2006, 2009, 2011a, 2011b, 2017, Suleiman and Akiyama 2007, Higuchi et al. 2008, Akiyama 2010, Ho et al. 2010, Ellis et al. 2010, 2015, 2016a, 2016b, Andi et al. 2015, Chua and Suleiman 2015, Mohamed et al. 2010, Suleiman and Rimi 2016).