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<p><Emphasis Type="BoldItalic">Myrcia spiciformis</Emphasis>, 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&#xa0;mm long, and flowers with 4–5 sepals. The staminal ring is glabrous and the hypanthium is pubescent. Morphologically, <i>M</i>. <i>spiciformis</i> is related to <i>M</i>. <i>coumete</i>. The new species is endemic to the Amazon Biome, with records from Maranhão and Pará states, where it grows in both non-flooded upland (<i>terra-firme</i>) and seasonally flooded (<i>várzea</i>) 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.</p>

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A new species of Myrcia s. lat. (Myrtaceae) from the eastern Amazon

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月9日

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  • Gabriela Amorim,
  • Leidiana Lima dos Santos,
  • Eduardo Bezerra de Almeida Jr.,
  • Maria Regina de Vasconcellos Barbosa,
  • William Wayt Thomas

摘要

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.