A new species of Piper (Piperaceae) with peltate leaves from Serrania de las Quinchas, Colombia Author Jaramillo, M. Alejandra https://orcid.org/0000-0002-6539-4149 Grupo Diversitas, Facultad de Ciencias Ba ́ sicas y Aplicadas, Universidad Militar Nueva Granada, km 2 Via Cajica ́ - Zipaquira ́, Cajica ́, Colombia maria.jaramillo@unimilitar.edu.co Author Rodriguez-Duque, Dayro https://orcid.org/0000-0002-3829-3377 Grupo de Investigacio ́ n Biodiversidad y Conservacio ́ n, Museo de Historia Natural " Luis Gonzalo Andrade ", Facultad de Ciencias, Universidad Pedago ́ gica y Tecnolo ́ gica de Colombia-Universidad Nacional de Colombia, Av. Central del Norte 39 - 115, Tunja-Boyaca ́, Tunja, Colombia Author Escobar-Alba, Magda https://orcid.org/0000-0002-3756-9132 Grupo de Investigacio ́ n Biodiversidad y Conservacio ́ n, Museo de Historia Natural " Luis Gonzalo Andrade ", Facultad de Ciencias, Universidad Pedago ́ gica y Tecnolo ́ gica de Colombia-Universidad Nacional de Colombia, Av. Central del Norte 39 - 115, Tunja-Boyaca ́, Tunja, Colombia text PhytoKeys 2023 2023-05-29 227 9 24 http://dx.doi.org/10.3897/phytokeys.227.101405 journal article http://dx.doi.org/10.3897/phytokeys.227.101405 1314-2003-227-9 F77677CBB4665D8B925C3BE8C4426FCF Piper andersii M.A.Jaram., stat. nov. et nom. nov. Piper mikanianum Steud. var. peltatum Yunck., Bol. Inst. Bot. ( Sao Paulo) no. 3: 54 (1966). Type: Brazil, Minas Gerais, Caldas, A. F. Regnell II 256*, 9 Jul 1864. Non Piper peltatum L. Note. The epithet P. andersii is proposed here to replace Piper mikanianum Steud. var. peltatum Yunck. because Piper peltatum L., (Sp. Pl. 1: 30 1753) is already in use. Etymology. The new epithet andersii honors Anders Fredrik Regnell (1807-1884), Swedish physician and botanist who established himself in Minas Gerais (Brazil) and collected the type specimen for this species. T. Yuncker provided a key to four varieties of Piper mikanianum (Kunth) Steud: P. mikanianum (Kunth) Steud var. mikanianum ; P. mikanianum f. clausum characterized by the closed sinus and overlapping lobes; P. mikanianum var. pilosius C. DC. with leaves and stems strongly pilose with hairs up to 1mm long; and P. mikanianum var. peltatum Yunck with peltate leaves and nerves minutely hirtellous on the abaxial surface ( Yuncker 1972 ). Yuncker had mentioned that this latter variety might deserve species rank, we propose to make the change suggested and propose the new name P. andersii . Furthermore. P. mikanianum occurs in the states of Minas Gerais, Parana and Rio Grande do Sul in Brazil and in Argentina, P. andersii , with peltate leaves has only been registered from the state of Minas Gerais.