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. 2023 Mar 23;13(3):e9913.
doi: 10.1002/ece3.9913. eCollection 2023 Mar.

Callicarpa stoloniformis (Lamiaceae), a new species from Southeast China based on morphological characters and phylogenetic evidence

Zhonghui Ma  1 , Xiangxiu Su  2 , Huimin Cai  1 , Zhiwei Su  3 , Bin Chen  4
Affiliations

Callicarpa stoloniformis (Lamiaceae), a new species from Southeast China based on morphological characters and phylogenetic evidence

Zhonghui Ma et al. Ecol Evol. .

Abstract

Callicarpa stoloniformis sp. nov. (Lamiaceae) is described as a new species from Fujian Province of China on the basis of both morphological and molecular data. The new species is morphologically most close to C. hainanensis. However, it can be distinguished from the latter by its unique procumbent life form, adventitious roots at nodes, papery leaves, cup-shaped or campanulate calyx, truncate or shallow fissure calyx lobes, and smaller fruits. In addition, the new species is also similar with C. basitruncata, a species only known from the original description and the photograph of holotype, but it can differ from the latter by its procumbent shrub, purple terete branchlets with apparent linear lenticels, adventitious roots at nodes, and papery larger leaves with prominently cordate leaf base. Original photographs, illustration, distribution map, and a comparative morphological table, as well as an identification key of the related taxa are provided.

Keywords: Callicarpa; Lamiaceae; morphology; phylogenetic analysis.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

FIGURE 1
FIGURE 1
Callicarpa stoloniformis. (a) Habit; (b) branchlet with adventitious roots at nodes; (c) branchlet with stellate tomentose; (d) adaxially and abaxially of blade; (e) stem with leaves and cymes; (f, g) inflorescence; (h) fruit; (i) pyrenes.
FIGURE 2
FIGURE 2
Inflorescence of Callicarpa stoloniformis. (a, b) Influorescence; (c, d) peduncle and pedicel with stellate tomentose and yellow glandular; (e) corolla (split open); (f) ovary.
FIGURE 3
FIGURE 3
Illustration of Callicarpa stoloniformis. (a) Plant with flowers; (b) branchlet with adventitious roots at nodes; (c) detail of stem; (d) cross‐ and longitudinal section of stem showing the pith; (e) stellate tomentose on the branchlet; (f) cyme; (g) flower; (h) calyx; (i) ovary with style; (j) corolla (split open) with stamens; (k) infructescence; (l) pyrenes with seed inside.
FIGURE 4
FIGURE 4
Phylogenetic relationships among Callicarpa stoloniformis and representative species of Callicarpa based on the combined DNA data (two nuclear and five chloroplast regions). The numbers under the nodes are Bayesian posterior probabilities and maximum likelihood bootstrap percentages, respectively.
FIGURE 5
FIGURE 5
Distribution map of Callicarpa stoloniformis.
See this image and copyright information in PMC

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