Typification of the Linnaean name Arum peregrinum (Araceae)

The typification of the Linnaean name Arum peregrinum, validly published in the first edition of Species plantarum, is discussed. In the absence of original material useful for lectotypification, a study of the various pre‐Linnaean works linked to this name, as well as an in‐depth analysis of literature, was necessary to understand its concept and designate a neotype. Tabula XXXVI in Plumier's Plantarum Americanarum, which was cited by Linnaeus in the tenth edition of Systema naturae under Arum peregrinum, is selected as neotype. Based on the typification, Arum peregrinum is synonymized with Alocasia macrorrhizos.