Terniopsis jianfengensis (Podostemaceae), a new species from Hainan,   China based on morphological and genomic data
We describe Terniopsis jianfengensis H.X. Yu &amp; X.L. Guo, a new species from Ledong County, Hainan Province, China, based on morphological and molecular data. T. jianfengensis has a gross morphology similar to T. chanthaburiensis, but it can be distinguished from the latter by its longer pedicel and ramulus length, more sparse leaves and different stigmas. To distinguish the new Terniopsis species and study its phylogenetic position, its complete plastome was sequenced and characterised. The plastome is 130,529 bp in length, including a pair of inverted repeat regions (IRs) of 19299 bp divided by the large single-copy (LSC) and small single-copy (SSC) regions of 79606 bp and 12325 bp, respectively. The plastome size of T. jianfengensis relatively smaller compared to most angiosperms due to the absence of the ycf1 and ycf2 genes in the IR regions. The phylogenetic analyses also strongly support the separation of the new species from other taxa.