A new species of Inosperma, and first record of I. afromelliolens (Inocybaceae, Fungi) from West Africa

Here, we present the newly identified Inosperma macrocarpa and the first record of I . afromelliolens from West Africa. Inosperma macrocarpa is nested in an Old World Tropical clade, based on a molecular phylogeny inferred from the sequences of ITS , LSU , RPB2 , and TEF1 . Complete descriptions and illustrations, including photographs and line drawings, of the new species are presented. Morphological and molecular analyses based on collections from Benin confirmed the presence of I . afromelliolens in West Africa. Toxicity analysis showed that neither species contained muscarine, which further supports the hypothesis that the ability to produce muscarine is a derived trait of Inosperma .