Year: 2026
Type: article
Abstract: The Atlantic Forest biome, predominant in southern Brazil has, as its main formations the Dense and Mixed Ombrophilous Forests, where Myrtaceae Juss. is an important family. Due to the large number of species and the scarcity of taxonomic studies, the family is considered difficult to determine. For this reason, this study aimed to analyze the wood of Myrrhinium atropurpureum Schott from São José dos Pinhais/PR. Samples of stem wood from three plants were used to prepare histological slides and macerates, which were analyzed under light microscopy. M. atropurpureum has grayish bark and light-yellow wood, with no characteristic shine, smell or taste; is very resistant to cutting. The growth rings are distinct to the naked eye, formed by fibrous zones, the porosity is diffuse, the pores are circular to oval and solitary in the majority, with an average diameter of 35.53 μm, with vessel elements of an average length of 497.55 μm; the perforation plates are simple and the intervascular pits are alternate, tending towards opposite, with an average diameter of 3.96 μm. The axial parenchyma is diffuse-inaggregates, series of 5-7 cells high, with the presence of prismatic crystals. The rays are heterocellular and not storied, mostly two cells wide, with an average height of 188.31 μm and a width of 16.23 μm; the fibers are fibrotracheid, with an average height of 950.75 μm and an average wall thickness of 6.33 μm. The result corroborates the basic characteristics of Myrtaceae wood and will contribute to the pending taxonomic clarification of the family.
Source: Heringeriana
Institution: Universidade da Região de Joinville
Language: English
Topic: Wood and Agarwood Research
Subfield: Forestry
Domain: Life Sciences
Open Access status: diamond
OpenAlex ID: W7220832093