biostudies-literatureUnknown197Simpson MGIn an earlier molecular phylogenetic study, a sample of what was originally identified as <i>Cryptanthahispida</i> (Boraginaceae) from Chile, grouped with species of the genus <i>Johnstonella</i>. This sample was subsequently shown not to be <i>C.hispida</i>, but an undescribed species, endemic to the dry Puna of Chile. This new species is described here as <i>Johnstonellapunensis</i>, along with a key to all South American species of the genus. <i>Johnstonellapunensis</i> resembles other members of that genus in having an ovate fruit shape, ovate nutlets and a long style that extends beyond the nutlets. It is unusual in the genus in having a non-tuberculate, dimpled to rugulose nutlet surface sculpturing. Its closest relative within the genus is likely the South American <i>J.diplotricha</i>.PhytoKeys149-164https://www.ebi.ac.uk/biostudies/studies/S-EPMC9848983biostudies-literature<i>Johnstonellapunensis</i> (Boraginaceae), a new species endemic to the dry Puna of Chile.PMC9848983Munoz-Schick MSimpson MGHasenstab-Lehman KMabry MEfalse<i>Johnstonellapunensis</i> (Boraginaceae), a new species endemic to the dry Puna of Chile.In an earlier molecular phylogenetic study, a sample of what was originally identified as <i>Cryptanthahispida</i> (Boraginaceae) from Chile, grouped with species of the genus <i>Johnstonella</i>. This sample was subsequently shown not to be <i>C.hispida</i>, but an undescribed species, endemic to the dry Puna of Chile. This new species is described here as <i>Johnstonellapunensis</i>, along with a key to all South American species of the genus. <i>Johnstonellapunensis</i> resembles other members of that genus in having an ovate fruit shape, ovate nutlets and a long style that extends beyond the nutlets. It is unusual in the genus in having a non-tuberculate, dimpled to rugulose nutlet surface sculpturing. Its closest relative within the genus is likely the South American <i>J.diplotricha</i>.2022-01-01T00:00:00Z20222026-04-08T12:46:03.184Z2025-04-05T19:43:03.309ZS-EPMC98489833676067310.3897/phytokeys.197.84833