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Novedades en Salicaceae para Colombia, una especie nueva de Neosprucea

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Resumen

Se describe e ilustra a Neosprucea chrysantha (Salicaceae), con base en especímenes de remanentes de vegetación en los municipios de Girón y Betulia, en el departamento de Santander, Colombia. La especie nueva difiere de las demás especies conocidas de Neosprucea por sus flores principalmente trímeras a ocasionalmente tetrámeras y la presencia de anteras incurvadas, ligeramente ensanchadas apicalmente con poros transversales. El taxón nuevo se asemeja a Neosprucea paterna por su venación actinódroma, flores amarillas y glándulas del margen de la lámina pilosas, la única especie asociada a la región del Escudo Guayanés, y a Neosprucea rimachii, del noroccidente de la cuenca amazónica. En Colombia se registran siete de las diez especies descritas de Neosprucea, de las cuales dos son endémicas.

Abstract

Neosprucea chrysantha (Salicaceae) is described and illustrated based on specimens from remnant vegetation in the municipalities of Girón and Betulia, Santander Department, Colombia. The new species differs from other known species of Neosprucea by its mainly trimerous to occasionally tetramerous flowers and the presence of incurved anthers, slightly widened apically with transverse pores. The new taxon resembles Neosprucea paterna by its actinodromous venation, yellow flowers, and hairy lamina margin glands, the only species associated with the Guiana Shield region, and Neosprucea rimachii, from the northwestern Amazon basin. Seven of the ten described species of Neosprucea are recorded in Colombia, of which two are endemic.

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Correspondence to Diego Alejandro Zapata-Correa.

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Associate Editor: Julián Aguirre-Santoro

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Zapata-Correa, D.A., Tobón-Agudelo, J.P. Novedades en Salicaceae para Colombia, una especie nueva de Neosprucea. Brittonia (2024). https://doi.org/10.1007/s12228-024-09781-3

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