Tuesday, November 14, 2023

[Botany • 2021] Corydalis austroshaanxiensis (Papaveraceae, sect. Incisae) • A neglected Species from Shaanxi, China, and A revised Circumscription for C. pseudoincisa


 Corydalis austroshaanxiensis D. Wang,

in D. Wang, Huang, Xu et L. Wang, 2021. 
陕南紫堇  ||  DOI: 10.1111/njb.03272 

Photos: Dong Wang.

Abstract
Corydalis austroshaanxiensis, a new species of Corydalis sect. Incisae Fedde (Papaveraceae) from Shaanxi, China, is described. It is most similar to C. pseudoincisa C.Y. Wu, Z.Y. Su & Lidén, but differs in the outer petals being retuse to emarginate, with dorsal crest (versus acuminate, rounded to shortly mucronate, without crest), lowermost pedicels that are conspicuously elongating and basally recurved in fruit (versus slightly elongating, straight, erect-spreading), sepals that are 3–4 × ca 3 mm (versus 1.5–2.0 × ca 1.5 mm), lower petals that usually have a linear reddish tint at base (versus without reddish tint), capsules that are narrowly to broadly elliptic to obovoid (versus linear to narrowly oblong), and by the racemes corymbose, forming a very dense cluster of upper fruits (versus racemes not corymbose-like, flower dense in anthesis, lax in fruit). The original materials of C. pseudoincisa is shown to be mosaic, and the original descriptions and illustrations annotated as C. pseudoincisa only fit in part Cpseudoincisa. A revised circumscription for C. pseudoincisa is thus provided. We suggest the need for caution when identifying additional specimens as paratypes that differ from the holotype in distinct characters.

Keywords: Corydalis section Incisae Fedde, Qinling-Daba mountains, Papaveraceae, paratypes, taxonomy


 Corydalis austroshaanxiensis sp. nov. in the wild (D. Wang et al. 170036 & 180063).
(A) Habitat, (B) upper portion of fruits, (C-E) flowers showing the lateral view, (C) adaxial view, (D) abaxial view, (E) of a flower.
Photos: Dong Wang.


Dong Wang, Xiaomei Huang, Xiaodong Xu and Liang Wang. 2021. Corydalis austroshaanxiensis sp. nov. (Papaveraceae), A neglected Species from Shaanxi, China, and A revised Circumscription for C. pseudoincisaNordic Journal of Botany. DOI: 10.1111/njb.03272