Taxonomic Revision of <i>Passiflora</i> Subgenus <i>Tetrapathea</i> Including the Monotypic Genera <i>Hollrungia</i> and <i>Tetrapathea</i> (Passifloraceae), and a New Species of <i>Passiflora</i>

Abstract

Recent phylogenetic analysis of the Old World species of Passiflora has indicated that two monotypic genera in the Passifloraceae, Hollrungia and Tetrapathea , are strongly supported as belonging to the genus Passiflora . Additionally, a new species from Australia was found to belong to the same clade as Hollrungia and Tetrapathea . Consequently, a taxonomic revision is presented here of Passiflora subgenus Tetrapathea including these three taxa. Tetrapathea tetrandra , the type of Passiflora subgenus Tetrapathea and historically recognized as both T. tetrandra and P. tetrandra , is formally accepted here as P. tetrandra . The single species of Hollrungia , H. aurantioides, is transferred to Passiflora subgenus Tetrapathea as P. aurantioides . The new and so far unnamed species in Passiflora subgenus Tetrapathea from Australia is also described as P. kuranda sp. nov.