Leandro, Cristiane MartinsOliveira, Reisla Silva deAguiar, Ludmilla Moura de SouzaItabaiana, Yasmine Antonini2021-10-132021-10-132020LEANDRO, C. M. et al. Pollination biology of the endangered columnar cactus Cipocereus crassisepalus: a case of close relationship between plant and pollinator. Acta Botanica Brasilica, v. 34, p. 177-184, jan./mar. 2020. Disponível em: <https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100177>. Acesso em: 12 maio 2021.1677-941Xhttp://www.repositorio.ufop.br/jspui/handle/123456789/13862The family Cactaceae possesses considerable floral diversity and is exclusively zoophilic. Cipocereus crassisepalus is an endangered species of columnar cactus, whose floral characteristics fit the chiropterophily syndrome. This study aimed to assess the correspondence between floral traits and pollinators and whether the pollination system of C. crassisepalus is specialized, as suggested by the hypothesis of geographical dichotomy. Hand pollination treatments demonstrated that C. crassisepalus depends on cross-pollen flow mediated by pollinators to set fruit and seeds. Nocturnal film recordings, diurnal observations, analyses of pollen loads of flower visitors and visitor exclusion experiments provided strong evidence that bats are the sole pollinators of this cactus. During two flowering seasons, pollen grains of C. crassisepalus were found only on the bodies of the bat Anoura caudifer. Cipocereus crassisepalus possesses a pollination system specialized on nectar-feeding bats, which corroborates the geographical dichotomy hypothesis.en-USabertoAnoura caudiferCactaceaeChiropterophilyEffective pollinatorSelf-incompatibilityArtigo publicado em periodicoThis is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Fonte: o PDF do artigo.https://doi.org/10.1590/0102-33062019abb0219