FIGURE 4. Polyalthia taweensis: A. Leaves and inflorescences; B. Upper surface of leaf base; C. Lower surface of leaf base; D. Inflorescence; E. Sepals (outside on left, inside on light); F. Outsides of petals (outer petal on left, inner petal on right); G. Insides of petals (outer petal showing raised rugose border on left, inner petal on right). A, B & C are from Middleton, Phuphat, Pooma & Williams 2900 (BKF); E, F & G are from Leeratiwong 20-1534 (PSU, spirit material); all photographs by Pasakorn Bunchalee. Photograph in D was taken by Yamilah Sama-ae in Narathiwat, Ra Ngae District, Bo Ngo Subdistrict, Ta We Mountain, 20 April 2020.