Serpocaulon orosiense, a New Hybrid of Serpocaulon (Polypodiaceae) from Costa Rica
Fecha
2021-11-08
Autores
Rojas Alvarado, Alexander
Barrantes-Calvo, Lucía
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Editor
Universidad Nacional (Costa Rica)
Resumen
Se han descrito cuatro híbridos entre especies de Serpocaulon, uno de ellos S. × sessilipinnum fue el único híbrido conocido entre dos clados diferentes propuesto por Smith et al. En este trabajo se describe un nuevo híbrido S. × orosiense, siendo el segundo híbrido conocido entre clados: 1) Serpocaulon loriceum y 2) S. fraxinifolium. El estudio detallado de la morfología intermedia. De los caracteres del nuevo taxón y sus progenitores se hicieron por microscopía de luz con un estereoscopio binocular de la marca Motic Instruments, Modelo SMZ-171-BLED y fotografías de las esporas con marca Motic microscopio binocular, modelo BA210E. El nothotaxon nuevo tiene intermedio caracteres entre S. fraxinifolium y S. loriceum como tamaño de la fronda; forma, división y ápice de la lámina foliar; forma, ancho, ápice y número de pinnas; y número de series de areolas y soros. Como resultado y conclusión, una nothotaxon nuevo con morfología intermedia entre dos progenitores es descubierto entre diferentes clados dentro del género Serpocaulon.
Four hybrids between Serpocaulon species have been described, one of them S. × sessilipinnum was the only known hybrid between two different clades proposed by Smith et al. In this work, a new hybrid S. × orosiense is described, being the second known hybrid between clades: 1) Serpocaulon loriceum and 2) S. fraxinifolium. The detailed study of the intermediate morphology of the characters of the new taxon and their progenitors were made by light microscopy with a Motic Instruments brand binocular stereoscope, Model SMZ-171-BLED and photographs of the spores with a Motic brand binocular microscope, model BA210E. The new nothotaxon has intermediate characters between S. fraxinifolium and S. loriceum as size of the frond; shape, division and apex of the leaf blade; shape, broad, apex and number of pinnae; and number of series of areoles and sori. As result and conclusion, a new nothotaxon with intermediate morphology between two progenitors is discovered between different clades within the genus Serpocaulon.
Four hybrids between Serpocaulon species have been described, one of them S. × sessilipinnum was the only known hybrid between two different clades proposed by Smith et al. In this work, a new hybrid S. × orosiense is described, being the second known hybrid between clades: 1) Serpocaulon loriceum and 2) S. fraxinifolium. The detailed study of the intermediate morphology of the characters of the new taxon and their progenitors were made by light microscopy with a Motic Instruments brand binocular stereoscope, Model SMZ-171-BLED and photographs of the spores with a Motic brand binocular microscope, model BA210E. The new nothotaxon has intermediate characters between S. fraxinifolium and S. loriceum as size of the frond; shape, division and apex of the leaf blade; shape, broad, apex and number of pinnae; and number of series of areoles and sori. As result and conclusion, a new nothotaxon with intermediate morphology between two progenitors is discovered between different clades within the genus Serpocaulon.
Descripción
Palabras clave
HELECHOS, POLIPODIOPSIDA, NOTHOTAXON, SERPOCAULON, FRAXINIFOLIUM, S. LORICEUM