Andean slopes

How to Cite

Betancur, J., & Jaramillo, M. A. (1998). DISTRIBUCION DE LA FAMILIA BROMELIACEAE EN DOS VERTIENTES ANDINAS DEL SUR DE COLOMBIA. Selbyana, 19(1), 52–65. Retrieved from https://ojs.test.flvc.org/selbyana/article/view/120530


Se presenta una lista anotada y se analiza la riqueza, las afinidades florísticas y la distribución geográfica y altitudinal de las especies de Bromeliaceae que crecen en los Andes del extremo sur de Colombia. Se encontraron 169 especies, 14 géneros, 15 especies con distribución transandina, 8 primeros registros para Colombia y 7 probables especies nuevas. Los taxa con mas especies fueron la subfamilia Tillandsioideae y los géneros Guzmania, Pitcairnia y Tillandsia. La subfamilia Bromelioideae presentó más especies en la Planicie Amazónica, la Pitcairnioideae en el Piedemonte Pacífico y la Tillandsioideae en todas las subregiones montañosas; en la Planicie Pacífica Guzmania fue el género mejor representado, en la Planicie Amazónica Aechmea, en las subregiones de piedemonte Guzmania y Pitcairnia y en el Altiplano Pasto-Sibundoy Tillandsia. Las especies son principalmente endémicas (33%), ampliamente distribuidas en los Andes (32%) o en el neotrópico (20%). El mayor número de especies se encontró entre 600 y 1,800 m de altitud, con un pico en 1,200-1,400 m. La subfamilia Bromelioideae fue mas diversa a altitudes bajas (0-600 m), mientras que Pitcairnioideae y Tillandsioideae a altitudes medias (600-2,000 m). The richness, floristic affinities, and geographical and altitudinal distribution of Bromeliaceae from the Andean slopes of southern Colombia were studied. A total of 14 genera and 169 species were found—a checklist of these is presented. Fifteen of the species showed a transandean distribution, eight species are newly recorded here for Colombia, and seven are likely species new for science. The most speciose subfamily was the Tillandsioideae, and most speciose genera Guzmania, Pitcairnia, and Tillandsia. The subfamily Bromelioideae was found to be most diverse in the Amazon Plain, the Pitcairnioideae in the Pacific foothills, and Tillandsioideae in the montane regions. In the Pacific Plain, Guzmania was the most speciose genus, as was Aechmea in the Amazon Plain, Guzmania and Pitcairnia in the foothills, and Tillandsia in the Pasto-Sibundoy Plateau. Thirty-three percent of the species found were endemic, 32% were widely distributed in the Andes, and 20% widely distributed in the Neotropics. The majority of the species were found between 600 and 1,800 m elevation, with a peak at 1,200-1,400 m. Species of the subfamily Bromelioideae were found at low altitudes (0-600 m) and those of the other subfamilies at mid-elevations (600-2,000 m).


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