We surveyed the common and rare species of Myrtaceae that were sampled in the Santa Catarina Forest Floristic Inventory of the Seasonal Deciduous Forest. This forest runs along the Uruguay River and its tributaries, with cold winters and rainfall distributed throughout the year, and a mostly deciduous and emergent canopy. We collected data in 78 sample units, each with an area of 0.40 ha, and recorded trees ≥ 10 cm diameter at breast height. We used Rabinowitz methodology to separate common and rare species, based on three variables: geographic distribution, habitat and population size. Of the 28 species sampled, 78.57% (22 spp.) were rare and 21.43% (6 spp.) were common. Myrtaceae species in the Seasonal Deciduous Forest are generally widely distributed, but are selective in relation to habitat and low in abundance. It is important to note that three species were considered rare in this forest: Eugenia subterminalis DC., Myrcianthes gigantea (D.Legrand) D.Legrand and Siphoneugena reitzii D.Legrand with one individual each. Campomanesia xanthocarpa (Mart.) O.Berg was the most common species. All species are dispersed by animals and can be used in habitat restoration.
Atlantic Forest domain; rarity analysis; conservation
