Multigene Phylogeny Reveals Haploanthostomella elaeidis gen. et sp. nov. and Familial Replacement of Endocalyx (Xylariales, Sordariomycetes, Ascomycota)

During our investigation of palm fungi in Thailand, two interesting taxa from Elaeis guineensis and Metroxylon sagu (Arecaceae) were collected. Based on phylogenetic analyses of a combined dataset of ITS, LSU, rpb2, and tub2 nucleotide sequences as well as unique morphological characteristics, we introduce the new genus Haploanthostomella within Xylariales, and a new species Endocalyx metroxyli. Additionally, in our study, the genus Endocalyx is transferred to the family Cainiaceae based on its brown conidia and molecular phylogenetic evidence.

Automated summary

During the investigation of palm fungi in Thailand, two interesting taxa were collected from African oil palm and sago palm, which were classified into the new genus Haploanthostomella within Xylariales, and a new species Endocalyx metroxyli. Additionally, the genus Endocalyx was transferred to the family Cainiaceae based on its brown conidia and molecular phylogenetic evidence.