An integrated taxonomic investigation of Arisaema sections Sinarisaema and Anomala with two newly described species from Vietnam.
Two new species of Arisaema endemic to Vietnam belonging to section Sinarisaema are described based on morphological and phylogenetic evidence; Arisaema ytyense R.Moore, V.D.Nguyen and B.H.Quang and Arisaema vanbanense R.Moore & V.D.Nguyen. A phylogenetic analysis was performed using ITS sequence data to elucidate the evolutionary relationships within the genus whilst a more detailed analysis of sections Anomala and Sinarisaema was performed using the Angiosperms353 probe set to inform the complex interspecific relationships within these two sections. The ITS data provides an overview of the intrageneric classification within Arisaema, with a number of sections shown to be polyphyletic highlighting the need for further sampling to better inform our understanding of this genus. Our phylogenetic results using the Angiosperms353 probe set give supporting evidence for the description of two new species. The use of the Angiosperms353 probe set provides the most detailed analysis of sections Anomala and Sinarisaema yet performed, informing us of the complex evolutionary relationships with these sections and improving our understanding of the genus as a whole.
Two new species of Arisaema endemic to Vietnam belonging to section Sinarisaema are described based on morphological and phylogenetic evidence; Arisaema ytyense R.Moore, V.D.Nguyen and B.H.Quang and Arisaema vanbanense R.Moore & V.D.Nguyen. A phylogenetic analysis was performed using ITS sequence data to elucidate the evolutionary relationships within the genus whilst a more detailed analysis of sections Anomala and Sinarisaema was performed using the Angiosperms353 probe set to inform the complex interspecific relationships within these two sections. The ITS data provides an overview of the intrageneric classification within Arisaema, with a number of sections shown to be polyphyletic highlighting the need for further sampling to better inform our understanding of this genus. Our phylogenetic results using the Angiosperms353 probe set give supporting evidence for the description of two new species. The use of the Angiosperms353 probe set provides the most detailed analysis of sections Anomala and Sinarisaema yet performed, informing us of the complex evolutionary relationships with these sections and improving our understanding of the genus as a whole.
Olivier Maurin