TL;DR: A synoptic treatment of the 23 genera of Myrtaceae in Brazil and keys for their identification are provided, including a general key to all genera, a key to the subtribes, and keys to the genusa of each subtribe.
Abstract: A synoptic treatment of the 23 genera of Myrtaceae in Brazil and keys for their identification are provided, including a general key to all genera, a key to the subtribes, and keys to the genera of each subtribe. Four commonly recognized genera that we consider to be of uncertain status are provisionally treated as segregates of large related genera: Marlierea and Gomidesia with Myrcia; and Hexachlamys and Calycorectes with Eugenia. Important characters of the inflorescence, calyx, ovary, placenta, ovule, fruit, seed, and embryo are discussed and illustrated. Information provided for each genus includes concise descriptions, geographic distribution, approximate number of species, and comparisons to related genera. Families that might be confused with Myrtaceae are briefly discussed. A new combination, Mosiera prismatica (D. Legrand) Landrum, is made.
TL;DR: Thirteen new species of Myrtaceae from Colombia are described and illustrated; information about the habitats in which these species are growing, the evaluation of its conservation status, and its affinities are included.
Abstract: Thirteen new species of Myrtaceae from Colombia are described and illustrated; information about the habitats in which these species are growing, the evaluation of its conservation status, and its affinities are included. Besides, five new records of native and introduced Myrtaceae are reported for Colombia. Also, a new combination of a Myrtaceae species previously described as Calycorectes is proposed here under the genus Eugenia.
TL;DR: Taxonomic monograph of Eugenia sect. Schizocalomyrtus, supported by molecular and morphological evidence, is presented in this article, where a key to Neotropical genera with fused calyces is presented.
Abstract: Taxonomic monograph of Eugenia sect. Schizocalomyrtus, supported by molecular and morphological evidence, is presented. The flowers of this section have unusual fused calyces that are contrasted with standard Eugenia flowers with free calyx lobes. Because the fused calyx recurs in Myrtaceae and has been historically misleading for taxonomists, a key to Neotropical genera with fused calyces is presented. Additionally, Eugenia sect. Schizocalomyrtus is circumscribed, and a key to the ten species included in this section (two newly described) is provided. Detailed species descriptions, distribution and habitat notes, phenology, conservation status, nomenclatural and taxonomic comments, illustrations and distribution maps are also provided.