Abstract:The development of anther and microspore in Hevea seedling and in Hevea clones RRIM 600 and GT-1 were observed, and the results are as follows: 1. Anther wall of seedling tree consists of four layers of cells and its formation is of dicotyledonous type. In later development stages some fibrous thickenings appear on the walls of endothecium cells,in which the protoplast remains until anther dehiscence. The middle layer consists of one layer of cells or two layers of irregular cells and disappears in monokary...