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Kew Bulletin

, 74:58 | Cite as

Taxonomic updates in South American Myrcia (Myrtaceae: Myrteae): lectotypes, synonyms, new combinations and new names in Myrcia sect. Eugeniopsis

  • Matheus F. SantosEmail author
  • Paulo T. Sano
  • Eve Lucas
Article
First Online:

Summary

Myrcia contains nearly 800 species and is divided into nine sections based on a combination of characters. Myrcia sect. Eugeniopsis encompasses 18 species nearly endemic to the Atlantic Forest. This study presents taxonomic updates in Myrcia sect. Eugeniopsis. Collections of 22 herbaria were analysed and at least one type collection of each name was checked. Lectotypes are provided for the 13 following basionyms: Aulomyrcia oblongata, Calyptromyrcia eugenioides var. puberula, Eugenia laevigata, Eugenia sylvatica, Eugeniopsis clausseniana, Eugeniopsis clausseniana var. rufa, Eugeniopsis gaudichaudiana, Eugeniopsis luschnathiana, Eugeniopsis ovata, Eugeniopsis polygama, Marlierea subacuminata, Myrcia eugenioides and Myrcia tenuivenosa. Nine synonymisations are proposed: Aulomyrcia lineata under Myrcia eugenioides; Calyptromyrcia eugenioides var. puberula, Eugeniopsis clausseniana, Eugeniopsis clausseniana var. glabrata, Eugeniopsis clausseniana var. rufa, Eugeniopsis gardneriana and Eugeniopsis ovata under Myrcia multipunctata; Eugeniopsis acuminatissima under Myrcia tenuivenosa; Marlierea krapovickae under Myrcia subacuminata. Five new combinations are presented: Myrcia gaudichaudiana (based on Eugeniopsis gaudichaudiana), Myrcia polygama (based on Eugeniopsis polygama), Myrcia schottii (based on Marlierea schottii), Myrcia subacuminata (based on Marlierea subacuminata) and Myrcia teuscheriana (based on Eugeniopsis teuscheriana). Two new names are proposed: Myrcia maculata (for Eugeniopsis luschnathiana) and Myrcia ochraciflora (for Eugeniopsis grandifolia). The holotypes of six names from the nineteenth century are clarified. A neotype is selected for Aulomyrcia lineata and Calyptromyrcia eugenioides var. glabra.

Keywords

Atlantic Forest Brazil Calyptranthes Marlierea Neotropics taxonomy 
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Notes

Acknowledgements

The first author acknowledges CNPq for the postdoc fellowship (grant#150217/2016-1). We thank the herbarium staff of all visited herbaria for allowing study of the Myrtaceae collections and the staff of G for providing high resolution images of type specimens.

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Copyright information

© The Board of Trustees of the Royal Botanic Gardens, Kew 2019

Authors and Affiliations

  1. 1.Universidade Federal de São CarlosSorocabaBrazil
  2. 2.Universidade de São PauloSão PauloBrazil
  3. 3.Herbarium, Royal Botanic GardensSurreyUK

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