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Impatiens leshanensis (Balsaminaceae), a new species from Sichuan, China
Xingyu Du1, Yanru Zhang1, Shihao Jiang1
1Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Sichuan Normal University, Ministry of Education, Chengdu 610066, China School of Life Sciences (School of Ecological Forestry), Mianyang Normal University Mianyang China https://ror.org/02rka3n91.
Abstract:
Impatiens leshanensis X.H.Gu, K.Huang & Z.X.Fu, sp. nov., a new species of Balsaminaceae from Jinkouhe District, Leshan City, Sichuan Province, China, is described and illustrated. Phylogenetic analysis based on the complete cp genome indicates that the new species is closely related to Impatiens faberi Hook.f., forming a monophyletic clade. However, I. leshanensis can be distinguished from I. faberi and other morphologically similar species (including Impatiens baishaensis B.Ding & H.P.Deng, Impatiens piufanensis Hook.f., Impatiens forrestii Hook.f. & W.W.Sm, Impatiens distracta Hook.f., Impatiens lateristachys Y.L.Chen & Y.Q.Lu, Impatiens rostellata Franch., Impatiens rectirostrata Y.L.Chen & Y.Q.Lu, and Impatiens longcanggouensis Q.Luo.) by its unique morphological traits: oblong-elliptic dorsal petal as wide as the lateral petals, narrowly funnelform lower sepal, pale pink flowers with deep red spots and pink stripes, and ellipsoid seeds with reticulate ornamentation. Additionally, the distribution map and chloroplast genome features are provided.
