Impatiens liupanshuiensis (Balsaminaceae), a new species from Guizhou, China

Abstract

Impatiens liupanshuiensis (Balsamianceae), belonging to I. subgen. Impatiens, is recognised as a new species from Guizhou, China and it is described and illustrated. It is morphologically similar to I. xanthocephala W.W. Sm. in its yellow flowers, extremely small basal lobes on lateral united petals, broadly-dolabriform distal lobes and funnelform lower sepal. However, it is distinctive in the number of lateral sepals, teeth on the margin of lateral sepals, the recurvature of the dorsal petal, the number of lateral veins, the shape and size of the lamina and the type of lamina margin. A detailed description of the new species and colour photographs are provided. Its geographical distribution and morphology are also compared to similar species.

Species Diversity and Geographical Distribution Patterns of Balsaminaceae in China

“…47) [4], Flora of China (Vol. 12) [5], and local flora books at all levels, supplemented by monographs on the genus Impatiens; family members included in the Species 2000 China node; and journal papers on new taxa and national records of the genus Impatiens in China published up to February 2023 [17][18][19][20][21].…”

Impatiens zhaojueensis (Balsaminaceae) sp. nov. from Sichuan, China

“…Due to its unique landform and variable climate, southwestern China (covering the provinces of Sichuan, Yunnan, Guizhou, Tibet and Chongqing) is home to a variety of Impatiens species. In recent years, numerous new species have successively been discovered in this area (Cai et al 2015, Luo et al 2015a, b, Tan et al 2015, Ding et al 2016, Guo et al 2016, Xia et al 2019, Peng et al 2020, 2021a, b, Xue et al 2020, Zhang et al 2020, Gu et al 2021, Liao et al 2021, Song et al 2021a, b, Ren et al 2022, Wang et al 2022, Yuan et al 2022a), increasing China's Impatiens species to 352 (Yuan et al 2022b).…”

Impatiens bijieensis (Balsaminaceae), a new species from karst plateau in Guizhou, China

“…In recent years, a few new species have also been found in the northern temperate regions of Europe, Russia and China, as well as North America ( Liao et al 2021 ). Currently, there are more than 349 species of Impatiens in China ( Yuan et al, in press ) which are distributed mainly in the southwest and northwest mountainous regions, especially in southwest Provinces (including Guizhou, Yunnan, Sichuan) ( Chen 2001 ; Chen et al 2007 ; Cai et al 2015 ; Kuang 2015 ; Tan et al 2015 ; Ding et al 2016 , 2017 ; Xia et al 2019 ; Gu et al 2021 ; Liao et al 2021 ; Peng et al 2021b ; Song et al 2021a , b , c ) and 61 species of Impatiens have been reported in Guizhou Province ( Xiong and Yang 2009 ; Cong 2010 ; Kuang et al 2014 ; Luo and Deng 2015 ; Peng et al 2021a ; Yu et al 2021 ; Yuan et al in press ).…”