Saturday, November 30, 2024

[Botany • 2024] Lorostemon roseoviridis (Clusiaceae) • A New Species from the eastern Amazonia


 Lorostemon roseoviridis  Fer.-Silva & L.Marinho,
  
in Ferreira-Silva, Marinho, Mouzinho et Hopkins, 2024. 
Photo by H.D. Clarke  

Abstract
During the review of the Brazilian species of Lorostemon (Clusiaceae), we verified that some specimens previously reported as L. bombaciflorus Ducke for South Guyana and the Brazilian Eastern Amazonia belong to a species still unknown to science. Here, we provide a description, taxonomic comments, illustrations, and a distribution map of Lorostemon roseoviridis Fer.-Silva & L.Marinho, a new species from eastern Amazonia.

Keywords: Diversity, Flora, Guttiferae, Lorostemon roseoviridis, Symphonieae

Open flower of Lorostemon roseoviridis.
Photo by H.D. Clarke from the holotype, H.D. Clarke 7160.

Lorostemon roseoviridis Fer.-Silva & L.Marinho, sp. nov. 

TYPE: Guyana: Upper Takutu-Upper Essequibo Region. Acarai Mts., summit of unnamed peak, ...

Etymology. The epithet refers to the predominant colors found in the flowers and derives from the Latin roseus (pink) and viridis (green). Ducke (1935) published the first species name in the genus as "L. bombaciflorum", indicating that Lorostemon would be neuter, but Art. 62.2 (a) of the ICN (Turland et al., 2018) states that compound generic names ending in -stemon are masculine.



Silvia Larissa Ferreira-Silva, Lucas C. Marinho, Thiago M. Mouzinho and Michael J. G. Hopkins. 2024. A New Species of Lorostemon (Clusiaceae) from the eastern Amazonia. Brittonia. 76, 132–136. DOI: doi.org/10.1007/s12228-024-09791-1