Tuesday, September 3, 2024

[Botany • 2024] Salvia penghuana (Lamiaceae) • A New Species from Guizhou, China


Salvia penghuana  G.X.Hu & C.L.Xiang, 

in Qiu, Yu, Lan, An, Geng, Xiang et Hu, 2024. Salvia 
彭华鼠尾草  ||  DOI: 10.3897/phytokeys.246.130332

Abstract
Salvia penghuana, a new species from Guizhou Province of southwestern China, is described and illustrated. Morphologically, Salvia penghuana is similar to S. filicifolia, but can be easily distinguished from the latter by ovate-lanceolate bracts, purple corolla, and foot-shaped fused lower arms of connective. In addition, S. penhuana is morphologically similar to S. cavaleriei, but differs by having 3–4-pinnate leave, ovate-lanceolate bracts, puberulent calyx, and longer upper arms of connective. Based on the fibril root, small calyx and corolla, and completely reduced posterior thecae, S. penghuana should be placed in section Sobiso of subg. Glutinaria.

Key words: Salvia cavaleriei, Salvia filicifolia, sect. Sobiso, stamen movement, Subg. Glutinaria


Salvia penghuana sp. nov.
A habit B flower C dissected corolla D dissected calyx E fertile stamens.
Drawn by Xiao-Yu Wang from the holotype.
 
Salvia penghuana sp. nov.
 A habitat B, C plant D leaf (adaxial surface) E leaf (abaxial surface) F inflorescence G verticillaster H calyx (external view) I calyx (internal view) J–K corolla (side view) L (front view) M fertile stamens.
Photographs by Guo-Xiong Hu.

 Salvia penghuana G.X.Hu & C.L.Xiang, sp. nov.
 
Diagnosis: Salvia penghuana is similar to S. filicifolia, but differs in having 6-flowered verticillasters (vs. 6–10-flowered verticillasters), ovate-lanceolate bracts (vs. linear-lanceolate), purple corolla (vs. yellow or white), foot-shaped fused lower arms of connective (vs. subulate separated lower arm). It is also similar to S. cavaleriei, but differs by having 3–4-pinnate leaves (vs. simple to 2-pinnate), ovate-lanceolate bracts (vs. lanceolate), puberulent calyx (vs. glabrous), longer upper arms of connective (ca. 5 mm vs. ca. 3 mm).

Etymology: The specific epithet ‘penghuana’ was selected to honor Prof. Hua Peng, who is a renowned expert on plant taxonomy at the Kunming Institute of Botany, Chinese Academy of Sciences, China.
Vernacular name: Chinese Mandarin: Péng huá shǔ wěi cǎo (彭华鼠尾草)


 Feng-Jin Qiu, Deng-Li Yu, Hong-Bo Lan, Ming-Tai An, Yan-Fei Geng, Chun-Lei Xiang, Guo-Xiong Hu. 2024. Salvia penghuana (Lamiaceae), A New Species from Guizhou, China. PhytoKeys. 246: 179-187. DOI:  doi.org/10.3897/phytokeys.246.130332