Four new Myrcia (Myrtaceae) from Amazonian Brazil

Abstract

There are described and illustrated Myrcia caloneura, M. oreophila, M. sticta and M. tarauacana. Myrcia caloneura, from the states of Amazonas and Pará, is related to M. rugosior, but differs by its adult glabrescent blades and tetramerous flowers; M. oreophila, from the state of Roraima,is related to M. aegiphiloides, but has pilose, loosely reticulate blades and pilose flowers; M. sticta, from the state of Amazonas, is close to M. splendens, but has blades with rounded to cordate base and larger and easily visible glandular dots, and M. tarauacana is related to M. aequatoriensis and M. crassimarginata but has shorter blades and longer inflorescences. Conservation status of each species is also suggested.

A taxonomic account of Myrcia (Myrtaceae) at the sites of the Biological Dynamics of Forest Fragments Project, Amazonas, Brazil

“…Myrcia caloneura is known from a few collections from terra firme forest in Amazonas and Pará states, Brazil (Sobral et al 2019). This species is recognisable by long cataphylls (up to 4.6 cm, Fig.…”

“…Although the Amazonian domain holds only ca. 25% of the Brazilian species of Myrcia (Santos et al 2020), several studies have described new species and reported new occurrences in the last decade (Santos et al 2015;Sobral et al , 2019Gaem et al 2019aGaem et al , 2020a, increasing the richness of the genus in that region.…”

A taxonomic account of Myrcia (Myrtaceae) at the sites of the Biological Dynamics of Forest Fragments Project, Amazonas, Brazil

“…Myrcia caloneura is known from a few collections from terra firme forest in Amazonas and Pará states, Brazil (Sobral et al 2019). This species is recognisable by long cataphylls (up to 4.6 cm, Fig.…”

“…Although the Amazonian domain holds only ca. 25% of the Brazilian species of Myrcia (Santos et al 2020), several studies have described new species and reported new occurrences in the last decade (Santos et al 2015;Sobral et al , 2019Gaem et al 2019aGaem et al , 2020a, increasing the richness of the genus in that region.…”