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Conchocarpus kallunkiae (Rutaceae: Galipeinae), a new endemic species from the tropical rainforest in the Magdalena River Valley in Colombia

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Abstract:

Conchocarpus kallunkiae (Rutaceae: Galipeinae), a new species from the Magdalena River Valley region in Colombia, is described and illustrated and comments about its geographical distribution, phenology, conservation status, and taxonomic affinities are provided. The new species differs from any other species in the genus by the combination of remarkably bullate blades, basally appendaged anthers, and a 4-carpellate ovary. Based on inflorescences and flowers, it seems closely related to Conchocarpus macrophyllus (type species of the genus) with which it shares foliaceus primary bracts, partial inflorescences developing as scaly short-shoots, zygomorphic flowers, an androecium of two stamens and five staminodes, and a glabrous ovary. Because it is endemic to the inter-Andean valleys of Colombia and exhibits some traits uncommon among the Galipeinae (for example, anthers connate by their basal appendages), including this species in future evolutionary studies may provide insights about the geographical and morphological histories of the genus and the subtribe.

Resumen: Conchocarpus kallunkiae (Rutaceae: Galipeinae), una nueva especie de la región del valle del río Magdalena en Colombia, se describe e ilustra y se proveen comentarios sobre su distribución geográfica, fenología, estado de conservación y afinidades taxonómicas. La nueva especie se diferencia de otras especies del género por la combinación de hojas notablemente buladas, anteras con apéndices basales y ovario con cuatro carpelos. Con base en las inflorescencias y las flores, parece estar estrechamente relacionada con Conchocarpus macrophyllus (especie tipo del género), con el cual comparte brácteas primarias foliáceas, inflorescencias parciales que se desarrollan como brotes cortos escamosos, flores zigomorfas, androceo de dos estambres y cinco estaminodios y ovario glabro. Debido a su condición como endémica de los valles interandinos de Colombia y la presencia de algunos caracteres poco comunes en Galipeinae (por ejemplo, anteras connadas por sus apéndices basales), la inclusión de esta especie en futuros estudios evolutivos puede ayudar a aclarar las historias geográfica y morfológica tanto del género como de la subtribu.

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Acknowledgments

We thank the staff of herbaria COAH, COL, HUA, JAUM, MEDEL, and UDBC for their attention during examination of the collections; Diego Armando Zapata (HUA) for the illustration; Ana Cristina Pareja (HUA) for the composed photographs; Dewey Litwiller (University of Saskatchewan, Canada) for the English review; Universidad Nacional de Colombia for financial support to Y.L., A.T. and J.P., FAPESP (Fundação de Amparo à Pesquisa do Estado de São Paulo, grants 2006/03170-0, 2007/06336-0, 2016/06260-2) and CNPq (Conselho Nacional de Pesquisa grant 309088/2016-0) for financial support to M.G.; Álvaro Cogollo (JAUM), Álvaro Idárraga (JAUM), Cristian Yamid Alvanes (Corporación Ecológica y Cultural Sangre Verde), Heriberto David (HUA), Jonatan Castro (HUA), and Yamith Sneider Hoyos (FONVALMED) for help in fieldwork planning.

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Authors and Affiliations

  1. Herbario Universidad de Antioquia (HUA), Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, A.A, 1226, Medellín, Colombia

    Yeison Londoño-Echeverri & Ana María Trujillo-López

  2. Grupo de Estudios Botánicos (GEOBOTA), Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, A.A, 1226, Medellín, Colombia

    Yeison Londoño-Echeverri & Ana María Trujillo-López

  3. Herbario Gabriel Gutiérrez Villegas (MEDEL), Facultad de Ciencias, Universidad Nacional de Colombia, A.A, 3840, Medellín, Colombia

    Jorge Andrés Pérez-Zabala

  4. Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Avenida dos Bandeirantes 3900, 14051-901, Ribeirão Preto, São Paulo, Brazil

    Milton Groppo

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  1. Yeison Londoño-Echeverri
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  2. Ana María Trujillo-López
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Correspondence to Yeison Londoño-Echeverri.

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Londoño-Echeverri, Y., Trujillo-López, A.M., Pérez-Zabala, J.A. et al. Conchocarpus kallunkiae (Rutaceae: Galipeinae), a new endemic species from the tropical rainforest in the Magdalena River Valley in Colombia. Brittonia 73, 422–430 (2021). https://doi.org/10.1007/s12228-021-09671-y

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