Nomenclatural notes on South American Gentianella (Swertiinae, Gentianeae, Gentianaceae): Gentianella calanchoides, G. ernestii, and G. rima

The name Gentianella rima (D. Don ex G. Don) Fabris is correctly applied to a species native to central Peru. The name G. ernestii (Briq.) Fabris ex J.S. Pringle is correctly applied to a similar species native to southern Peru. These species, along with G. calanchoides (Gilg) Fabris, are contrasted here.