An ultraestructural analysis of the Taiwan and Thailand clones of Dendrocalamus asper made with the scanning electron microscope showed that the Taiwan clone had low dome stomata while the Thailand clone has high dome stomata in the leaf lamina. Cuticular wax accumulations in the Taiwan clone has two shapes, against four in the Thailand clone. Both have the same distribution of vascular and surrounding tissues. Macroscopic or microscopic observation of culm bracts are not recommended to differentiate these clones: a reliable identification requires observation of the ultrastructure of stomata and cuticular wax accumulations. Rev. Biol. Trop. 54(Suppl. 2): 65-75. Epub 2006 Dec. 01.
Keywords: ultraestructure, scanning electron microscopy, anatomy, bamboo, Poaceae, Dendrocalamus asper, Taiwan clon, Thailand clon