Title:Effects of the fungus Pestalotiopsis maculans (Ascomycota: Amphisphaeriales) on the gametophytic development of the fern Lygodium venustum (Lygodiaceae)
Title:A new species of Petasiger (Digenea, Echinostomatidae) parasitizing Podiceps major and Rollandia rolland (Aves, Podicipedidae) from Buenos Aires Province, Argentina