Aristolochia yachangensis, a new species of Aristolochiaceae from limestone areas in Guangxi, China

Abstract

Aristolochia yachangensis B.G.Huang, Yan Liu & Y.S.Huang, a new species from limestone areas in Guangxi, China, is described and illustrated. It is morphologically most similar to A. fangchi Y.C.Wu ex L.D.Chow & S.M.Hwang, A. petelotii O.C. Schmidt and A. championii Merr. & Chun in shape of leaf blade, anther, gynostemium and inflorescence on old woody stems. However, it can be easily distinguished from the latter by shape of inflorescence, length of upper and lower portions of perianth tube, colour of the limb and throat. A table and a key to distinguish the new species from other morphologically similar Aristolochia species are also provided.

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

“…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 ).…”

Walsura guangxiensis (Meliaceae), a new species from Guangxi, China

“…Guangxi is located in the southwest of China and is a biodiversity hotspot where many new species or new species records have been found ( Hu et al 2019 ; Luo et al 2020 ; Feng et al 2021 ; Xin et al 2021 ; Huang et al 2022 ). The new species, W. guangxiensis , is found in this region and is named after the geographic location.…”

Isotrema putalengense, a new species of Aristolochiaceae from northern Vietnam and two new combinations in Isotrema

“…This generic concept is followed in many later publications (Li et al 2019;Zhou et al 2019;Zhu et al 2019a;Zhu et al 2019c;Zhu et al 2019d;Cai et al 2020a;Wang et al 2020a;Wang et al 2020b). Although several other authors still prefer assigning their newly described species under Aristolochia subgenus Siphisia (e.g., Cai et al 2020b;Luo et al 2020;Zhou et al 2020;Do et al 2021), of which Isotrema was accepted as one of synonyms in the most recent nomenclatural review of Aristolochia-related taxa by Ohi-Toma and Murata (2016), the phylogenetic results by Zhu et al (2019e) appear to be robust because of their extensive samples of Asian species and combination of molecular, chromosomic and morphological data. Therefore, Isotrema is followed in this paper.…”