Taxonomic novelties in Myrcia guianensis and allied species (Myrtaceae: Myrteae), including mass-typification in a large and taxonomically challenging group

摘要

The 'Myrcia guianensis group', or Guianensis clade, comprises c. 30 species distributed mainly in the Cerrado and Atlantic Forest biomes of Brazil. The group is currently being monographed and during this process, type collections have been analysed and a thorough literature search completed; 36 new synonyms are recognised, and 95 lectotypifications and five neotypifications are made.