Sunday, June 5, 2022

[Botany • 2022] Impatiens nushanensis (Balsaminaceae) • A New Species from Yunnan, China


  Impatiens nushanensis Z. Wang, P. P. Wu & S. X. Yu,

in Wang, Wu, Liu, Guo & Yu, 2022. 
怒山凤仙花 || DOI: 10.11646/phytotaxa.545.2.7 
 
Abstract
Impatiens nushanensis (Balsaminaceae), a new species from Yunnan, China, is described and illustrated here. The new species is morphologically most similar to I. purpurea, but differs by having two pairs of lateral sepals and deep purple lower lobe of the lateral united petal with an acuminate and ribbon-like apex. Furthermore, phylogenetic analysis based on molecular data also support the recognization of this new species.

Key words: Balsaminaceae, taxonomy, flora of China, Nushan Mountain, new taxon


  Impatiens nushanensis Z. Wang, P. P. Wu & S. X. Yu,
A. Habit; B. Flower, front view; C. Flower, lateral view; E. Fruits.
D. Dissection of a flower, D 1 upper petal, D 2 lower sepal, D 3 outer lateral sepals, D 4 inner lateral sepals, D 5 lateral united petals, D 6 ovary surrounded by stamens.
(Photographed by Zi Wang)

Impatiens nushanensis and three related species.
A. I. rectangula (by Zi Wang); B. I. cyathiflora (by Min-Yu Chen);
C. I. purpurea (by Bin Chen); D. I. nushanensis (by Zi Wang). 

Impatiens nushanensis Z. Wang, P. P. Wu & S. X. Yu, sp. nov.

Etymology:—The epithet nushanensis refers to the type locality, Nushan Mountain
and the Chinese name of this new species is given as 怒山凤仙花.

 
Zi Wang, Po-Po Wu, Chang-Cheng Liu, Ke Guo and Sheng-Xiang Yu. 2022. Impatiens nushanensis (Balsaminaceae), A New Species from Yunnan, China. Phytotaxa. 545(2); 186-196. DOI: 10.11646/phytotaxa.545.2.7