We studied the ultrastructure of sections of leaf lamina, leaf sheath and branches of an adult plant of Guadua macclurei. Culm sheaths lack fimbriae (oral setae). The adaxial section of the leaf lamina has a particular cellular pattern, previously unreported in this genus. The tricellular trichomes, and the evident and ordered bands of high dome stomata may be useful for taxonomic purposes. To the best of our knowledge, this is the first microscopic description of this species. Rev. Biol. Trop. 54(Suppl. 2): 35-42. Epub 2006 Dec. 01.
Keywords: Bamboo, morphology, ultrastructure, anatomy, diversity