Taxonomy and nomenclature of Aspidosperma (Apocynaceae) Author Castello, Ana Carolina Devides 0000-0002-8730-8264 Departamento de Ciências Agrárias e Naturais, Universidade do Estado de Minas Gerais, CEP 38302 - 192, Ituiutaba, MG, Brazil ana. castello @ uemg. br; https: // orcid. org / 0000 - 0002 - 8730 - 8264 & Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas - UNICAMP, Rua Monteiro Lobato 255, CEP 13083 - 862, Cidade Universitaìria Zeferino Vaz, Campinas, SP, Brazil ana.castello@uemg.br Author Pereira, Andreza Stephanie De Souza Pós-graduação em Biologia Vegetal, Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas & Pós-graduação em Biodiversidade, Instituto de Ciências e Tecnologia das Águas, Unidade Tapajós, Universidade Federal do Oeste do Pará - UFOPA, Rua Vera Paz s. n., CEP 68040 - 255, Santarém, PA, Brazil Author Shimizu, Gustavo Hiroaki Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas - UNICAMP, Rua Monteiro Lobato 255, CEP 13083 - 862, Cidade Universitaìria Zeferino Vaz, Campinas, SP, Brazil Author Zuntini, Alexandre Rizzo Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas - UNICAMP, Rua Monteiro Lobato 255, CEP 13083 - 862, Cidade Universitaìria Zeferino Vaz, Campinas, SP, Brazil & Royal Botanic Gardens - Kew, Kew Green, Richmond, Surrey, TW 9 3 AE, U. K. Author Simões, André Olmos Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas - UNICAMP, Rua Monteiro Lobato 255, CEP 13083 - 862, Cidade Universitaìria Zeferino Vaz, Campinas, SP, Brazil Author Koch, Ingrid Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas - UNICAMP, Rua Monteiro Lobato 255, CEP 13083 - 862, Cidade Universitaìria Zeferino Vaz, Campinas, SP, Brazil text Phytotaxa 2022 2022-11-04 571 3 239 277 http://dx.doi.org/10.11646/phytotaxa.571.3.1 journal article 180421 10.11646/phytotaxa.571.3.1 2f0bde50-8a71-4f78-85a9-3a3b477c2590 1179-3163 7284667 Aspidosperma verbascifolium Müll.Arg. in Mart. & auct. suc., Fl. Bras. 6(1): 46. 1860 . ≡ Macaglia verbascifolia (Müll.Arg.) Kuntze , Revis. Gen. Pl. 2: 416. 1891. Lectotype (designated here): — BRAZIL . Goiás : 1816, A.F.C.P. de Saint-Hilaire C1-825 ( P [barcode P00645101 image!]; isolectotypes: F [fragment] [barcode V0092487F image!], P [barcode P00639598 image!, barcode P00639599 image!]) . = Aspidosperma macrocarpon var. macrothyrsum Müll.Arg. in Mart. & auct. suc., Fl. Bras. 6(1): 47. 1860. Lectotype (designated here): — BRAZIL . Ad Fluv. S. Francisci , s.d., L. Riedel 2770 (LE!; isolectotype: P [barcode P00639595 image!]), syn. nov . = Aspidosperma platyphyllum Müll.Arg. in Mart. & auct. suc., Fl. Bras. 6(1): 46. 1860. ≡ Macaglia platyphylla (Müll.Arg.) Kuntze, Revis. Gen. Pl. 2: 416. 1891 . Lectotype (designated here): — BRAZIL . Goiás : 1816, A.F.C.P. de Saint-Hilaire C1-844 (P [barcode P00639596 image!]; isolectotypes: F [fragment] [barcode V0092474 F image!], P [barcode P00639597 image!]), syn. nov . = Macaglia lanata Kuntze, Revis. Gen. Pl. 3(3): 197. 1898 . ≡ Aspidosperma lanatum (Kuntze) Malme in Ark. Bot. 21A(6): 20. 1927. Lectotype (designated here ):— BRAZIL . Mato Grosso : Jul 1892 , O. Kuntze s.n. (NY [barcode 00298114 image!]; isolectotype: RB [fragment] [barcode 00535108!]). B†, F negative No. 4419 image!. Notes —From the single gathering “St.-Hilaire 825” ( St.-Hilaire C1-825 ) mentioned in the protologue of A . verbascifolium by Müller-Argoviensis (1860a) , we elected the best-preserved material as the lectotype (P barcode 00645101) (ICN article 9.3; Turland et al. 2018 ). Also, Müller-Argoviensis (1860a) cited the collection Riedel 2770 for both A . macrocarpon var. macrothyrsum and A . platyphyllum . Still, based on the information on the labels and Saint-Hilaire’s field books ( Pignal et al. 2013 ), we speculate that he may have mixed the collection information. So, we consider that A . platyphyllum presents the type collection St.-Hilaire C1-844 , for which we selected the best-preserved specimen as the lectotype (P barcode P00639596), while Riedel 2070 is the type collection of A . macrocarpon var. macrothyrsum , for which we elected the sheet that possess the label with detailed information as the lectotype (LE) (ICN article 9.3; Turland et al. 2018 ). Lastly, we selected the most complete specimen from the single gathering cited by Kuntze (1898) for Macaglia lanata as the lectotype (NY barcode 00298114) (ICN article 9.3; Turland et al. 2018 ). Woodson (1951) considered A. macrocarpon var. macrothyrsum as a synonym of A . macrocarpon . However, after analyzing specimens of A. macrocarpon var. macrothyrsum , A . platyphyllum , and A . verbascifolium , we verified that all three possess branches with thickened suber, petiolate and long leaves (> 10 cm ) with eucamptrodomous venation, concentrated at the apex of branches, and flowers with externally entirely tomentose calyx, oblong corolla lobes, and externally entirely tomentose corolla tube. So, we consider A. macrocarpon var. macrothyrsum and A . platyphyllum as synonyms of A . verbascifolium .