A revision and recircumscription of Begonia Section Pilderia including one new species Author Moonlight, P. W. Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G 12 8 QQ, UK Author Jara-Muñoz, A. text Phytotaxa 2017 2017-05-19 307 1 1 22 http://dx.doi.org/10.11646/phytotaxa.307.1.1 journal article 10.11646/phytotaxa.307.1.1 1179-3163 13690119 Begonia pilderifolia C.DC. Bull. Herb. Boissier, ser. 2, 1: 315 (1901) , Type: Brazil , Ceará , Serra do Baturite, September 1897 , C. Huber 284 ( syntypes MG, P, G, G-BOISS). Although Begonia pilderifolia was first described by A.C.P. de Candolle in B. sect. Pilderia , it has since been shown to be synonymous with B. saxicola A.DC. in B. sect. Donaldia (Jacques & Mamede 2005) . This section is distantly related to B. sect. Pilderia and placed in Neotropical Clade 1 (Moonlight et al. 2015). We note that B. pilderifolia requires a lectotype , but as it is beyond the scope of our revision we are reluctant to do so.