The genus <i>Itajahya</i> (<i>Phallales</i>, <i>Basidiomycota</i>) in northeastern Argentina: macroscopic and microscopic characterisation of <i>Itajahya galericulata</i> and <i>Itajahya rosea</i>.

Itajahya is a phalloid genus characterised by the presence of a calyptra, a sterile slightly wavy tissue which remains attached to the pseudostipe by a thin membrane. This paper presents macroscopic and microscopic features of immature and mature basidiomes of two species collected in northeastern Argentina, I. galericulata and I. rosea . Furthermore, we emphasise the contrast between the two species and also provide a comparative morphological analysis. Photographs of their development and illustrations of the basidia and basidiospores are included. This study reports the first record of Itajahya rosea for Argentina.