Abrachium, a new genus in the Clathraceae, and Itajahya reassessed

Molecular and morphological analyses have elucidated phylogenetic relationships of two remarkable species in the Phallales: Aseroe floriformis and Phallus roseus. Genes from ATPase subunit 6 (atp6), the nuclear large subunit ribosomal DNA (nuc-LSU), and the second largest RNA polymerase II subunit (RPB2) underwent Bayesian and parsimony molecular analyses. Molecular datasets, combined with morphological characters, support a new genus (Abrachium for Aseroe floriformis), reassessment of Itajahya, and emendation of Clathraceae.