Woody flora of the Prof. Dr. Karl Arens Reserve, Corumbataí, São Paulo, Brazil

The survey in HRCB recorded 510 exsiccatae belonging to 160 species and 44 families. We also conducted 24 fieldwork expeditions between 2019 and 2021 and recorded 118 species in 39 families. In total, 193 woody species were recorded for the Reserve in Corumbataí. Species such as <i>Copaiferalangsdorffii</i> and <i>Myrcianeoclusiifolia</i> had already been cited for the area, but there was no testimony material in the herbarium. <i>Machaeriumnyctitans</i> and <i>Alchorneaglandulosa</i> are examples of new records for the Reserve. Fabaceae, Asteraceae, Myrtaceae, Melastomataceae and Rubiaceae were the families with the greatest species diversity.