Hedyotis taishanensis (Rubiaceae): A new species from Guangdong, China

Abstract

Hedyotis taishanensis is described as a new species from China. It is similar to H. acutangula, but obviously differs in unbranched herbal stems with slightly winged ridges, petiolated leaves, abaxially pubescent stipules, terminal pleiochasium inflorescence. The phylogenetic analysis from nuclear ITS and plastid petD sequences of 27 taxa revealed that H. taishanensis was an independent lineage but closely related to the clade including the sympatric species endemic to the Pearl River Delta, Guangdong, China. It was evaluated as Least Concern according to the IUCN Red List Categories and Criteria.

Hedyotis longiramulis (Rubiaceae), a new species from south China

“…Similar to other Hedyotis species described previously ( Wang et al 2018 ; Jiang and Wang 2019 ; Xu and Wang 2021 ; Jiang and Wang 2021 ), the pollen grains of H. longiramulis are dimorphic between long-styled and short-styled flowers, i.e., the pollen of the short-styled flowers is larger than that of the long-styled flowers. This pattern was also found in other Rubiaceae with dimorphic flowers, e.g., Damnacanthus C.F.Gaertn.…”

Two new species of Hedyotis L. (Rubiaceae) from Hainan, China

“…& G. Forst. and Pentodon pentandrus Vatke were selected as outgroup on basis of previous studies (Guo et al 2013, Neupane et al 2015, Wang et al 2018).…”

Hedyotis pubirachis (Rubiaceae), a new species from Guangdong, China

“…It was estimated that there are about 100 Hedyotis s. str. species in the world and 65 species in China (Wang 2018). Since the publication of Flora of China (Chen and Taylor 2011), many new species of Hedyotis have been described from China and the species number has been raised to 44 (Guo and Wang 2011, Deng and Wang 2012, Wang et al 2015, 2018, Yang 2018, Jiang and Wang 2019, 2021, Wang 2019, Liu et al 2020, Xu and Wang 2021a).…”