Polypleurum chinense A plants in bud adhering to rock surface B ribbon-like root with young floriferous shoots on flanks C flower bud covered by spathella(s) above bracts (b) D shoots along the flanks of the ribbon-like root between the root branches E, F flower at anthesis on peduncle with ruptured spathella G spathella H flower with spathella removed, stamen, and ovary, arrow shows a tepal on side of stamen I gynoecium without bracts J ovules on ovary septum K, L, M stamen, arrows show two tepals on sides of stamen. Scale bar: 1 mm (C, F, J); 2 mm (B, E, M); 500 μm (G, H, I, K, L).