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| Callicarpa yongshunensis Wen B. Xu, Xiao D. Li & Yan Ling Liu, Xu, Li, Wang, A. Liu et Y.-L. Liu. 2024. Photos by Wen-Bin Xu and Shu-Hui Wang. |
Abstract
This study provides detailed description of a newly-discovered Callicarpa yongshunensis Wen B. Xu, Xiao D. Li & Yan Ling Liu (Lamiaceae) species from Hunan, China. The species shares similarities in the inflorescence, glandular colour and leaf shape features with C. luteopunctata H. T. Chang and C. giraldii Hesse ex Rehd., while its white fruits are similar to those of C. longifolia Lamk. However, its procumbent, evergreen shrub and white fruits are distinctly different from those of C. luteopunctata and C. giraldii, while its procumbent, scarless nodes and stellate pubescence free fruits distinguishes it from C. longifolia. Images, distribution, morphological features, molecular phylogenetic classification and conservation assessment of this new Callicarpa species are explored.
Key words: Callicarpa, China, Hunan, Lamiaceae, morphology, new species
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| Images of Callicarpa yongshunensis Wen B. Xu, Xiao D. Li & Yan Ling Liu A inflorescence in ventral view B inflorescence in lateral view C fruit branch in lateral view D infructescence in ventral view E individual in the fruiting period of wild populations F roots developed from the node area of fruit branches G glands on the abaxial surface of the leaf H leaf, adaxial surface I leaf, abaxial surface J typical species natural habitat. Photos by Wen-Bin XU and Shu-Hui WANG. |
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| The microstructure of flowers and fruits of Callicarpa yongshunensis Wen B. Xu, Xiao D. Li & Yan Ling Liu A flower B longitudinally dehiscing anther C calyx and attached glands D petals and attached glands E young fruit and attached glands F bifid stigma G petiole nodes without transverse scar. Photos by Shu-Hui WANG. |
Callicarpa yongshunensis Wen B. Xu, Xiao D. Li & Yan Ling Liu, sp nov.
Diagnosis: C. yongshunensis is morphologically similar to C. luteopunctata H.T. Chang, C. giraldii Hesse ex Rehd. and C. longifolia Lamk. (Table 2), but differs from C. luteopunctatain and C. giraldii in being a procumbent shrub (vs. erect shrubs) with evergreen leaf (vs. deciduous leaf) and white fruit (vs. red or purple fruit). Similarly, unlike C. longifolia, it has procumbent shrubs (vs. erect shrubs), no transverse scar in the nodes (vs. nodes with a transverse scar) and glabrous mature fruits covered with yellow glands (vs. mature fruit covered with stellate pubescence).
Wen-Bin Xu, Xiao-Dong Li, Shu-Hui Wang, Ang Liu and Yan-Ling Liu. 2024. Callicarpa yongshunensis (Lamiaceae): A New Species from Hunan, China. PhytoKeys. 241: 131-141. DOI: 10.3897/phytokeys.241.119343
