Morphological and phylogenetic analysis reveals Cyathus nisiaensis as a novel bird's nest fungus species, highlighting fungal biodiversity in the Atlantic Forest biome.
Key Points
To describe and formally propose Cyathus nisiaensis as a new fungal species discovered within a conservation unit of the Brazilian Atlantic Forest.
Morphological characterization of collected specimens, focusing on pedicel height, mouth structure, and basidiospore dimensions.
Phylogenetic analysis of internal transcribed spacer (ITS) sequence data to determine taxonomic placement within the genus Cyathus.
Morphological examination revealed a pedicel 1.89 in height, a continuously finely setose mouth, and basidiospores measuring 12.94–17.52 × 7.91–11.83 µm.
ITS phylogenetic analysis confirmed Cyathus nisiaensis as a distinct novel species positioned within the minimum group clade.