Abstract (en):
This article proposes and describes a new nothospecies of Catasetum discovered in the igapó forest surrounding Lake Carapanatuba, located on the banks of the Madeira River, approximately 85 km from the city of Humaitá, Brazil. The hybrid exhibits intermediate characteristics of its putative parents, Catasetum boyi and Catasetum ivaneae. Detailed information on its distribution, habitat, ecology, and phenology is provided, along with an identification key. The discovery of Catasetum × humaitaense as a natural hybrid offers valuable insight into natural selection and evolutionary processes, as it can breed or backbreed with its parental species, generating offspring with genetic and phenotypic variation important for environmental adaptation.
Abstract (es):
Este artículo propone y describe una nueva notoespecie de Catasetum descubierta en el bosque de igapó que rodea el lago Carapanatuba, ubicado a orillas del río Madeira, aproximadamente a 85 km de la ciudad de Humaitá, Brasil. El híbrido presenta características intermedias entre sus posibles progenitores, Catasetum boyi y Catasetum ivaneae. Se proporciona información detallada sobre su distribución, hábitat, ecología y fenología, junto con una clave de identificación. El descubrimiento de Catasetum × humaitaense como un híbrido natural ofrece valiosos conocimientos sobre la selección natural y los procesos evolutivos, ya que puede cruzarse o retrocruzarse con sus especies parentales, generando descendencia con variación genética y fenotípica importante para la adaptación al ambiente.
Keywords:
hybridization, speciation, reproduction, plant taxonomy (en)
hibridación, especiación, reproducción, taxonomía de plantas (es)
hibridación, especiación, reproducción, taxonomía de plantas (es)
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How to Cite
Krahl, D. R. P., de Oliveira, M. S., Schmal , P., da Silva, J. B. F., Chiron, G., Krahl, A. H., & Cantuária, P. de C. (2025). Catasetum × humaitaense (Orchidaceae: Catasetinae), a new nothospecies from the Brazilian Amazon. Biota Colombiana, 26. https://doi.org/10.21068/26193124.1263
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