Alyxia angustifolia Peninsular Malaysia, Pahang, Gunong Tahan, Ridley 16060 (K) Peninsular Malaysia, Pahang, Gunong Tahan, Ridley 16060 Peninsular Malaysia, Pahang, Gunong Tahan, Ridley 16060 Peninsular Malaysia, Pahang, Gunong Tahan, Ridley 16060 (BM) Isotype: Peninsular Malaysia, Pahang, Gunong Tahan, Ridley 16060 (A) Holotype: Brunei, Pagon Ridge, P.S. Ashton BRUN 1886 (L) Borneo, Sarawak, Gunong Santubong, Native Collector 2224 Lectotype: Borneo, Sarawak, Gunong Santubong, Native Collector 2224 (PNH) Isotype: Borneo, Sarawak, Gunong Santubong, Native Collector 2224 (A)