Pleurothyrium amissum P. Juárez & J. F. Morales (Lauraceae), a new species endemic to the highland oak forests of the Costa Rican Talamanca range, is described and illustrated. Pleurothyrium amissum and P. pauciflorum van der Werff & Hammel have similar floral morphology but differ by their height, leaf size, inflorescence size, number of flowers per inflorescence, flower color, and habitat. Photographs, a distribution map, and a key to the species of Pleurothyrium Nees in Costa Rica are presented.
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29 April 2021
Pleurothyrium amissum (Lauraceae), a New Endemic Tree from the Talamanca Montane Forest in Costa Rica
Pedro Juárez,
J. Francisco Morales
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Central America
Neotropics
Ocotea complex
taxonomy