Kopsia grandifolia Isotype: Peninsular Malaysia, Johor, Sungai Mupar, off 32nd mile Johor Bahru-Mersing road., Burkill 4230 (K) Peninsular Malaysia, Johor, Sungai Mupar, off 32nd mile Johor Bahru-Mersing road., Burkill 4230 (SAR) Peninsular Malaysia, Johor, Sungai Mupar, off 32nd mile Johor Bahru-Mersing road., Burkill 4230 (L) Peninsular Malaysia, Johor, Sungai Mupar, off 32nd mile Johor Bahru-Mersing road., Burkill 4230 (SING) Holotype: Peninsular Malaysia, Johor, Sungai Mupar, off 32nd mile Johor Bahru-Mersing road., Burkill 4230 (A)