K. Thothathri, S. P. Banerjee, and P. K. Hazra, “<I>Mapania cuspidata</I> (Miq.) Uitt. Var. <I>Angustifolia</I> (Uitt.) Uitt.-an Interesting Cyperaceae from Great Nicobar Island”, Indian Forester, vol. 98, no. 12, pp. 708–709, Dec. 1972.