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21 December 2021 Cololobus ruschianus (Vernonieae, Asteraceae), a Threatened Narrow Endemic Species from Atlantic Forest Inselbergs, Espírito Santo, Brazil
Marcelo Monge, André Paviotti Fontana, Claudio Nicoletti de Fraga, Ludovic Jean Charles Kollmann, Jimi Naoki Nakajima
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Abstract

The Atlantic Forest is the most species rich vegetation in Brazil and holds several phytophysiognomies, including the vegetation on inselbergs, which is a very stressful xeric environment that selects for very specialized biota. Cololobus is an endemic genus from Atlantic Forest inselbergs of eastern Brazil, and Cololobus ruschianus is a new species based on morphological evidence, differing from other species of the genus by its morphological traits in petioles, subinvolucral bracts, and outer involucral bracts. Cololobus ruschianus occurs in Santa Teresa, Espírito Santo State, Brazil and would likely be considered Critically Endangered (CR), based on the criteria of the IUCN red list.

© Copyright 2021 by the American Society of Plant Taxonomists
Marcelo Monge, André Paviotti Fontana, Claudio Nicoletti de Fraga, Ludovic Jean Charles Kollmann, and Jimi Naoki Nakajima "Cololobus ruschianus (Vernonieae, Asteraceae), a Threatened Narrow Endemic Species from Atlantic Forest Inselbergs, Espírito Santo, Brazil," Systematic Botany 46(4), 1114-1120, (21 December 2021). https://doi.org/10.1600/036364421X16370109698533
Published: 21 December 2021
KEYWORDS
biodiversity hotspot
Compositae
rain forest
rupicolous vegetation
Vernoniinae
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