Wood Anatomy of Four Myrtaceae Genera in the Subtribe Myrciinae from South America

摘要: The wood anatomy of 31 species representing four genera subtribe Myrciinae, Myrtaceae, Calyptranthes, Gomidesia, Marlierea and Myrcia is described. In general the Myrciinae can be characterised by solitary vessels, simple perforations, alternate vestured pits, fibres with bordered and/or pits (fibre-tracheids), parenchyma scanty paratracheal, diffuse diffuse-in-aggregates forming complete or interrupted bands, heterocellular rays disjunctive cell walls. share all these features, but exhibit considerable variation in axial patterns crystal occurrence distribution. No anatomical features serve to separate genera, some, e.g., helical thickenings crystals, appear restricted one genus another.