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Two new species of the “Gomidesia clade” of Myrcia s.l. (Myrteae, Myrtaceae) from the Atlantic Forest of southern Bahia, Brazil

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Abstract

Two new species of Myrcia from the Atlantic Forest zone of northeastern Brazil are described and illustrated. Both species are restricted to southern Bahia and belong to the “Gomidesia clade” of Mycia s.l., as indicated by the irregular opening on the dorsal side of the thecae. Myrcia pulvinata grows in lowland forest and is morphologically similar to M. spectabilis, from which it differs in its pulvinate petioles, cordate leaf base, and ellipsoid fruits. Myrcia serrana is found in montane forest and is morphologically similar to M. ilheosensis, but it can be distinguished from that species by the greater distances between the inter-secondary veins in the leaves and between the marginal veins and the leaf margin, navicular bracteoles, and larger fruits. Conservation status assessments for the two new species based on IUCN criteria are provided.

Resumo

Duas novas espécies de Myrcia a Floresta Atlântica do nordeste do Brasil são aqui descritas e ilustradas. Ambas são restritas para o sul da Bahia e pertencem ao “clado Gomidesia” de Myrcia s.l., devido à abertura irregular das teças. Myrcia pulvinata é encontrada em florestas de terras baixas e é morfologicamente semelhante à M. spectabilis DC., porém diferencia-se por seus pecíolos pulvinados e com base cordada, além de frutos elipsóides. Myrcia serrana é encontrada em Florestas Montanas e morfologicamente semelhante à M. ilheosensis Kiaerskou, porém diferenciando da mesma por sua maior distância entre as nervuras secundárias nas folhas, e maior distância da nervura marginal para a margem da folha, pelas suas bractéolas naviculares e seus frutos maiores. O status de conservação baseado nos critérios da IUCN são também fornecidos.

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Acknowledgments

We are indebted to the following organizations for funding our field research: CNPq, the U.S. National Science Foundation (DEB-0946618), Velux Stiftung, the Beneficia Foundation, CAPES, and IAPT (International Association for Plant Taxonomy). We thank CNPq-INCT-Herbário Virtual and Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco (FACEPE) for awarding the first author’s Ph.D. Grant, the curators of cited herbaria for providing access to their collections, Regina Carvalho for preparing the illustrations, Dr. R. Louzada and Dr. J. Prado for nomenclatural advice, M.Sc. A. Melo for preparing the distribution map, S. Heald for improving the English in the manuscript, two anonymous reviewers for their constructive criticisms, M.Sc. J. R Maciel and L. Daneu for help with the fieldwork, Dr. Vitor Becker, owner of the “RPPN Serra Bonita,” and Cecília and Jay, owners of the “Reserva Refúgio dos Anjos,” for providing access to their properties. Photographs of the new species were taken by B. S. Amorim.

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Authors and Affiliations

  1. Programa de Pós-graduação em Biologia Vegetal, Departamento de Botânica, Universidade Federal de Pernambuco, CEP: 51930-670, Recife, Pernambuco, Brazil

    Bruno S. Amorim

  2. Departamento de Botânica, Universidade Federal de Pernambuco, CEP: 51930-670, Recife, Pernambuco, Brazil

    Marccus Alves

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  1. Bruno S. Amorim
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  2. Marccus Alves
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Correspondence to Bruno S. Amorim.

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Amorim, B.S., Alves, M. Two new species of the “Gomidesia clade” of Myrcia s.l. (Myrteae, Myrtaceae) from the Atlantic Forest of southern Bahia, Brazil. Brittonia 67, 311–318 (2015). https://doi.org/10.1007/s12228-015-9386-0

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