Horsfieldia tenuifolia Horsfieldia tenuifolia (J. Sinclair) W.J. de Wilde in Gard. Bull Sing. 39: f. 28. 1986≡Horsfieldia polyspherula var. tenuifolia J. Sinclair in Gard. Bull. Sing. 28: 105. 1975Type: Bujang S13686