TY - JOUR AU - Arnelas, Itziar AU - Armijos-Barros, Jorge L. AU - Calvo, Joel PY - 2020/09/01 Y2 - 2024/03/29 TI - Taxonomic study of the genus Oritrophium (Astereae, Compositae) in Ecuador JF - Anales del Jardín Botánico de Madrid JA - An. Jard. Bot. Madr. VL - 77 IS - 1 SE - Articles DO - 10.3989/ajbm.2542 UR - https://rjb.revistas.csic.es/index.php/rjb/article/view/507 SP - e094 AB - <em>Oritrophium</em> (Kunth) Cuatrec. is a neotropical genus with a disjunct distribution in the Andes (Bolivia, Colombia, Ecuador, Peru, and Venezuela), the center of Mexico, and the mountains of the Guiana Shield in Venezuela, with a remarkable diversity in Ecuador. We present a taxonomic study for Ecuador that represents the first modern and exhaustive revision of this genus in this country. We recognize eight species and four subespecies. We provide a dichotomous key, descriptions, synonyms, morphological and nomenclatural notes, distribution maps, and photographs of living plants. Three names are lectotypified and two names are neotypified. ER -