Nomenclatural updates of Aristolochia subgenus Pararistolochia (Aristolochiaceae)

Abstract

Abstract. Aristolochia subgenus Pararistolochia is revised and 35 species, distributed in tropical Africa and Australasia, are recognised. Fourteen new combinations and two new names are presented, resulting from the transfer of all taxa of Pararistolochia to Aristolochia. Additionally, a neotype is designated for Aristolochia preussii.

Insights into taxonomy and phylogenetic relationships of eleven Aristolochia species based on chloroplast genome

“…In the cladistic analysis based on morphological characters, many infrageneric taxa have been recognized by different authors (Ohi-Toma and Murata, 2016). For example, Gonza ́lez et al proposed that genus Aristolochia should be divided into three subgenera (Aristolochia, Pararistolochia and Siphisia), while Stevenson et al indicated that the genus consisted of four genera in two subtribes Aristolochiinae and Isotrematinae (Gonza ́lez and Rudall, 2003;Buchwalder et al, 2014;Ohi-Toma and Murata, 2016). Besides, in the Flora of China, it is also stated a controversy that some species of Aristolochia should be transferred to the genus Isotrema (Huang et al, 2003).…”

“…Based on the combined analysis using two plastid genic spacers (rps16-trnK and petB-petD) and two nuclear genes (phyA and ITS2), the phylogeny construction results confirmed that genus Aristolochia was divided into two well-supported clades representing subtribe Aristolochiinae and Isotrematinae, and Zhu et al suggested Aristolochia subgenus Siphisia should be treated as an independent genus Isotrema (Zhu et al, 2019a). However, the results of different studies are not completely consistent, and the taxonomic systems of Aristolochia are still controversial (Wanke et al, 2006;Buchwalder et al, 2014;Ohi-Toma and Murata, 2016). With the new values and species of Aristolochia gradually published, effective methods to resolve the phylogenetic relationships and assess the previous classification of Aristolochia species are urgently needed (Yang et al, 2018;Luo et al, 2020).…”

“…suggested Aristolochia subgenus Siphisia should be treated as an independent genus Isotrema ( Zhu et al., 2019a ). However, the results of different studies are not completely consistent, and the taxonomic systems of Aristolochia are still controversial ( Wanke et al., 2006 ; Buchwalder et al., 2014 ; Ohi-Toma and Murata, 2016 ). With the new values and species of Aristolochia gradually published, effective methods to resolve the phylogenetic relationships and assess the previous classification of Aristolochia species are urgently needed ( Yang et al., 2018 ; Luo et al., 2020 ).…”

Vegetation structure and ground cover attributes describe the occurrence of a newly discovered carnivorous marsupial on the Tweed Shield Volcano caldera, the endangered black‐tailed dusky antechinus (Antechinus arktos)

“…Many of the 22% of species shared among the survey sites, such as golden sassafras (Doryphora sassafras), mountain butterfly vine (Pararistolochia laheyana), and prickly ash (Orites excelsus), are typically associated with high-altitude cool temperate plant communities and rainforests in eastern Australia (Buchwalder, Samain, Sankowsky, Neinhuis, & Wanke, 2014;Laidlaw, McDonald, Hunter, & Kitching,2011;Lowman, 1992). Similarities of floristic assemblages across high-altitude isolated areas of the Tweed caldera may be the result of volcanic formation of the area and proximate connection within the Tweed volcano prior to its degradation 20-24 million years ago (Graham, 2010;Kooyman, Rossetto, Cornwell, & Westoby, 2011;Weber, VanDerWal, Schmidt, McDonald, & Shoo, 2014).…”

Aristolochia quangbinhensis (Aristolochiaceae), a new species from Central Vietnam

“…Recent phylogenetic studies of the genus based on morphological and molecular data suggested a subdivision of Aristolochia into three subgenera: Aristolochia , Isotrema and Pararistolochia ( Wanke et al 2006 ). Aristolochia subgenus Aristolochia occurs from the Mediterranean zone to subtropical and tropical areas of America, Africa and Asia, Aristolochia subgenus Pararistolochia is present in tropical Africa and Australasia, whereas Aristolochia subgenus Isotrema shows a disjunct Asian and Central- and North American distribution ( Wanke et al 2006 , Ohi-Toma et al 2006 , González et al 2013 , Buchwalder et al in press ). Aristolochia subgenus Isotrema (hereafter shortened to Isotrema ) comprises about 70 species, 50 of which occur in Asia ( González et al 2013 ).…”