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 tomentosum Mart. & Zucc. in Flora 7(1, Beil. 4): 135. 1824, typ. cons. ≡ Aspidosperma tomentosum var. tomentosum . ≡ Macaglia tomentosa (Mart.) Kuntze, Rev. Gen. 2: 416. 1891 . Lectotype (designated here): — BRAZIL . Minas Gerais : Campis S. Philippi , secundum Fluvium S. Francisci , s.d., C.F.P. von Martius s.n. ( M [barcode M-0183474 image!]; isolectotypes: G [barcode G00143874 image!], M [barcode M-0183473 image!, barcode M-0183475 image!, barcode M-0183476 image!]) . = Aspidosperma dasycarpon A.DC., Prodr. [ A . P . de Candolle ] 8: 396. 1844. ≡ Macaglia dasycarpa (A.DC.) Kuntze, Rev. Gen. 2: 416. 1891 . Lectotype (designated by Woodson in Ann. Missouri Bot. Gard. 38(2): 147. 1951 ):— BRAZIL . Minas Gerais : 1840, P . C . D. Claussen 346 ( G [barcode G00169397 image!]). B †, F negative No. 4410 image!. = Aspidosperma tomentosum var. angustifolium Müll.Arg. in Mart. & auct. suc., Fl. Bras. 6(1): 45. 1860 . Lectotype (designated here): — BRAZIL . Bahia : Probe Caeté, s.d., L . Riedel 671 ( W [No. W 0057117 image!]; isolectotypes: W [No. W 0057118 image!, No. W 0057119 image!]). = Aspidosperma tomentosum var. velutinum Müll.Arg. in Mart. & auct. suc., Fl. Bras. 6(1): 45. 1860 . Syntype [perhaps holotype ]:— BRAZIL . Minas Gerais : Probe Sabará, s.d., L . Riedel 628 ( LE ). = Aspidosperma pallidiflorum Müll.Arg. in Warming in Vidensk. Meddel. Naturhist. Foren. Kjøbenhavn 1869(6–8): 101. 1869. Lectotype (designated here ):— BRAZIL . Minas Gerais : Lagoa Santa , s.d., J . E . B . Warming s.n. ( C [barcode C10005749 image!]; isolectotype: NY [barcode 00970770 image!]). = Aspidosperma rojasii Hassl. in Repert. Spec. Nov. Regni Veg. 12(325/330): 257. 1913. Lectotype (first-step lectotype designated by Woodson in Ann. Missouri Bot. Gard. 38(2): 148. 1951 ; second-step lectotype designated by Elsam et al. in Bonplandia 30(1): 33. 2021 ):— PARAGUAY . [ Amambay ]: Sierra de Amambay , pr. Esperanza , Sep 1907 /1908, T. Rojas s.n. [E. Hassler [10629]] (G (mounted on two herbarium sheets) [barcode G00108802 image!]; isolectotypes: C [barcode C10005751 image!], G [barcode G00108803 image!, barcode G00108804 image!], K [barcode K000587653 image!, barcode K000587654 image!], NY [barcode 00297992 image!], P [barcode P00639541 image!], RB [fragment] [barcode 00535079!], S [No. S12-16255 image!]). B†, F negative No. 4428 image!. “ Aspidosperma velutinum ” Fisch. in Mart. & auct. suc., Fl. Bras. 6(1): 45. 1860 , pro syn . Notes —The diagnosis of A . tomentosum presented in “ Flora ” by Martius & Zuccarini (1824) was based on a single collection made by Martius himself, though the indication of the original material ( Martius s.n. ) was only made later by Martius (1824) in “ Nova Genera et Species Plantarum ”. Since there is one sheet in the herbarium M from the single collection made by Martius (1824) for A . tomentosum that resembles the illustration first mentioned in “ Flora ”, but only published in “ Nova Genera et Species Plantarum ” (plate 34 (M barcode M-0183474)), we elected this sheet as the lectotype (ICN article 9.3; Turland et al. 2018 ). Furthermore, Müller-Argoviensis (1860a) indicated the gathering Riedel 671 in the prologue of A . tomentosum var. angustifolium but did not cite in which herbarium the type would be deposited. Thus, we chose a material with mature leaves and flowers as the lectotype of A . tomentosum var. angustifolium (W No. W0057117) (ICN article 9.3; Turland et al. 2018 ). Finally, Müller-Argoviensis (1869) did not cite in which herbarium the type of A . pallidiflorum would be deposited. Therefore, we chose the best-preserved specimen from this collection as the lectotype of A . pallidiflorum (C barcode C10005749) (ICN article 9.3; Turland et al. 2018 ). Woodson (1951) and Elsam et al. (2021) considered A. chodatii Hassl. ex Markgr. (not mentioned by Elsam et al. (2021)) , A . gomezianum A.DC. , A . hilarianum Müll.Arg. , A . obscurum Müll.Arg. , and A . tomentosum var. claussenii A.DC. (not mentioned by Woodson (1951)) as synonyms of A . tomentosum . We disagree with both authors as we recognize A . gomezianum as a different species and include A . obscurum in its synonym (see the species notes). Also, we treated A. chodatii and A . hilarianum as synonyms of A. subincanum ( Castello et al. 2018 ) and A . camporum , respectively (see the species notes). Lasty, Duarte (1968) described A . gilbertii Duarte , a species that shared some characteristics with A . tomentosum . However, we are still studying its description and types and for now do not have enough evidence to make decisions about its identity. So, we treated A. gilbertii as “ incertae sedis ”. We did the same for A . tomentosum var. claussenii , due to the lack of outstanding diagnostic characteristics in its protologue and our unsuccessful search for types associated with this name.