Abstract Myrcia spiciformis , a new species from the eastern Amazon, is described and illustrated. It is characterized by twigs with dense rufous pubescence, a spiciform panicle, pedicels absent or up to 3 mm long, and flowers with 4–5 sepals. The staminal ring is glabrous and the hypanthium is pubescent. Morphologically, M . spiciformis is related to M . coumete . The new species is endemic to the Amazon Biome, with records from Maranhão and Pará states, where it grows in both non-flooded upland ( terra-firme ) and seasonally flooded ( várzea ) forests. It is provisionally assessed as Endangered (EN) according to the IUCN Red List criteria, due to restricted distribution of the species and vegetation loss resulting from anthropogenic pressure in the occurrence area.
Amorim et al. (Mon,) studied this question.