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Published July 25, 2025 | Version v1
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A new species of Thibaudia (Ericaceae, Vaccinieae) from the Cordillera del Cóndor in Ecuador

Authors/Creators

  • 1. Grupo de Investigación en Medio Ambiente y Salud (BIOMAS), Ingeniería en Agroindustria, Facultad de Ingenierías y Ciencias Aplicadas, Universidad de Las Américas, vía a Nayón, Quito, Ecuador
  • 2. Institute of Systematic Botany, New York Botanic Garden, Bronx, New York, United States of America
  • 3. School of Envinronment, University of Auckland, Auckland, New Zealand
  • 4. Macleania Berries, Vereda Mancilla, Facatativá, Colombia
  • 5. Floplaya, Compañía de flores y plantas Yantzaza S.A., El Pangui, Ecuador|Grupo Científico Calaway Dodson: Investigación y Conservación de Orquídeas del Ecuador, Quito, Ecuador
  • 6. Jungle Dave's Science Foundation, San Juan Bosco, Ecuador|Grupo Científico Calaway Dodson: Investigación y Conservación de Orquídeas del Ecuador, Quito, Ecuador|Herbario HUTPL, Departamento de Ciencias Biológicas, Universidad Técnica Particular de Loja, San Cayetano Alto s/n 11-01-608, Loja, Ecuador

Description

The neotropical genus Thibaudia Ruiz & Pav. ex J.St.-Hil. (Ericaceae), comprises about 70–75 species and is distributed from Honduras in Central America, through the central Andes south to Bolivia, and eastward to Suriname and Brazil in South America. Ecuador is one of the countries with the greatest diversity of the genus, including 18 species, 12 of which are endemic. Within southeastern Ecuador, the Cordillera del Cóndor is a region characterized by exceptionally high levels of plant endemism, largely due to its unique geology. Recent botanical explorations across this area have led to the discovery of several new species in recent years. Among those was a peculiar species of Thibaudia that is distinct by having exclusively cauliflorous inflorescences in which the pedicel is articulated with the calyx and the filaments are connate. This species is here described and illustrated as Thibaudia shagmiana sp. nov.

A new species, Thibaudia shagmiana, is described from the Cordillera del Cóndor in eastern Ecuador. It is distinguished by having a scrambling habit, provided with lignotubers, lanceolate leaves that are verticillate at the apex of branches, solitary and glabrous flowers, caducous bracts and bracteoles, stamens shorter than the corolla, anthers with prognathous thecae, and laterally connate tubules. The taxonomic similarities of the new species are discussed, and information about its distribution, habitat, and conservation is provided.

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Additional details

Cites
Publication: 10.1016/j.ympev.2024.108202 (DOI)
Publication: 10.3897/phytokeys.227.104703 (DOI)
Publication: 10.1896/978-1-934151-43-3 (DOI)
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Publication: 10.26807/remcb.v42i2.903 (DOI)
Has part
Figure: 10.3897/BDJ.13.e157044.figure1 (DOI)
Figure: 10.3897/BDJ.13.e157044.figure2 (DOI)
Figure: 10.3897/BDJ.13.e157044.figure3 (DOI)
Figure: 10.3897/BDJ.13.e157044.figure4 (DOI)

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