Nomenclatural synopsis of the new Calea ser. Candolleanae (Asteraceae: Neurolaeneae), a clade endemic to Eastern and Central Brazil Author Bueno, Vinicius R. Universidade Federal do Rio Grande do Sul, Programa de Pós-graduação em Botânica, Laboratório de Sistemática Vascular, Prédio 43432, sala 107, Porto Alegre, RS 91501 - 970, Brazil Author Silva, Gustavo H. L. Escola Estadual Pindorama, R. Augusto de Moraes, Rondonópolis, MT, 78338 - 019, Brazil Author Reis-Silva, Genilson A. Instituto Federal de Educação, Ciência e Tecnologia do Piauí, Avenida Joaquim Manoel, s / n, Novo Horizonte, Valença do Piauí, PI, 64300 - 000, Brazil Author Teles, Aristônio M. Universidade Federal de Goiás, Departamento de Botânica, Instituto de Ciências Biológicas, Campus Samambaia, Av. Esperança, s / n, Vila Itatiaia, Goiânia, GO, 74690 - 900, Brazil Author Nakajima, Jimi N. Universidade Federal de Uberlândia, Departamento de Biologia, Rua Ceará, 1084, Umuarama, Uberlândia-MG, 38405 - 240, Brazil Author Gostel, Morgan R. Botanical Research Institute of Texas, 1700 University Dr, Fort Worth, TX 76107 - 3400, Fort Worth, United States of America Author Heiden, Gustavo Embrapa Clima Temperado, Rodovia BR 392, km 78, Caixa Postal 403, Pelotas, RS 96010 - 971, Brazil text Phytotaxa 2024 2024-07-16 660 1 46 54 http://dx.doi.org/10.11646/phytotaxa.660.1.4 journal article 302322 10.11646/phytotaxa.660.1.4 888fb377-11aa-43cf-9d6b-0c3c9f611332 1179-3163 13218014 Calea candolleana (Gardner) Baker (1884: 256) ≡ Meyeria candolleana Gardner (1848: 414) Protologue :—“In marshy Campos on the Serra da Batalha, district of the Rio Preto, province of Pernambuco , Sept. 1839 (2903), and in similar situations near São Domingos, Province of Goyaz, May, 1840 (4242)”. Lectotype (designated here):— BRAZIL . Pernambuco [ Bahia ]: Formosa do Rio Preto , Batalha , Sep. 1839 , G . Gardner 2903 ( K [ K000895290 ]!; isolectotypes M [ M001009797 ], digital image!; E [ E00417446 ], digital image!; E [ E00417447 ], digital image!; G [ G00222764 ], digital image!; G [ G00222766 ], digital image!; GH [ GH00589152 ], digital image!; GH [ GH00589153 ], digital image!; GH [ GH00589154 ], digital image!; GH [ GH00010104 ], digital image!; GH [ GH00589155 ], digital image!; K [ GH00054475 ]!; K [ K000895291 ]!; K [ K000895292 ]!; NY [ NY00215072 ]!; NY [ NY 00215073 ]!; NY [ NY 00215074 ]!; P [ P02140694 ]!; P [ P02140696 ]!; P [ P02140695 ]!; P [ P02140697 ]!; P [ P02140698 ]). Remaining syntypes :— BRAZIL . Goiás , São Domingos , 1 May 1840 , G . Gardner 4242 ( BM [ BM 001009796 ]!; E [ E00417446 ], digital image!; E [ E00417447 ], digital image!; G [ G00222765 ], digital image!; GH [ GH00589152 ], digital image!!; GH [ GH00589153 ], digital image!!; GH [ GH00589154 ], digital image!!; GH [ GH00589155 ], digital image!!; K [ K 000895292 ]!; NY [ NY00215072 ]!; NY [ NY00215073 ]!; NY [ NY00215074 ]!; P [ P02140694 ]!; P [ P02140695 ]!; P [ P02140696 ]!) . Note :—When Gardner (1848) published Meyeria candolleana , he indicated two collections as types, Gardner 2903 and Gardner 4242 . We designate the specimen Gardner 2903 at K (K000895290) as lectotype because this specimen is in better condition than its duplicates and the duplicates of Gardner 4242 . According to the label information, this latter collection is probably from the adjacent São Domingos municipality, Goiás state , Brazil . Gardner (1849) mentioned that, after leaving Parnaguá (today Piauí state ), he went to the state of Pernambuco towards the town of Rio Preto (today Formosa do Rio Preto, Bahia state ), passing over the Batalha mountains. This locality is currently part of the state of Bahia . Therefore, this locality is clarified as the place of origin for the type specimen. Calea crenata (non Calea crenata Chodat 1906: 726 ) and Wedelia oblongifolia are recognized as names pro synonymo by K.H.B. Schultz and J.B.E. Pohl, respectively and considered by Baker (1884) under C. candolleana . According to Reis-Silva et al. (2024) , C. candolleana is the most broadly distributed species in this series. It occurs in Bahia , Goiás , Minas Gerais , Mato Grosso , Pernambuco , and Tocantins states in Brazil ( Fig. 2 ).