Supplement to the 'Catalogue of Brazilian plants collected by Prince Maximilian of Wied'

Background and aims – A supplement list to the "Catalogue of Brazilian plants collected by Prince Maximilian of Wied" is supplied, with additions of additional specimens and with corrections and updates of the correct names. This supplement is presented as an electronic appendix to this essay, keeping the original format of the Catalogue, as well as the original numbers of the entries that have any sort of changes. The essay itself presents a summary on what has been achieved regarding the Brazilian collections of Wied, in terms of the current holdings of the different herbaria investigated, the available literature, and the information depicted from the labels of specimens and Wied's travelogue.Methods – Additional specimens from 23 different herbaria [B, BM, BR, E, F, G, G-DC, GOET, HBG, JE, K, LD, LE, M, MEL, NY, P, PH, S, STR, TO, U, and W] were studied personally, or by checking their holdings available in the internet, or as photographs, digital images received from the curators.Key results – After the release of the Catalogue (2013), 181 additional specimens have been located at the V. L. Komarov Botanical Institute (LE) in Saint Petersburg, along with 249 other specimens attributable to Wied from other herbaria. From these, 44 species not listed in the Catalogue have been added here. Lectotypifications for Calydermos repens Spreng., Celastrus quadrangulata Schrad., Ethulia involucrata Nees & Mart., and Inga ramiflora Colla are made, as well as the synonymizations of Calydermos repens Spreng. under Centratherum punctatum Cass., Acacia lasiopus Colla under Piptadenia adiantoides (Spreng.) J.F.Macbr., Inga ramiflora Colla under Zygia latifolia (L.) Fawc. & Rendle var. communis (Mart.) Barneby & J.W.Grimes. Panicum vimineum Schrad. and P. planotis Trin. are homotypic synonyms